diff --git a/src/main/java/seedu/address/logic/commands/EditLoanCommand.java b/src/main/java/seedu/address/logic/commands/EditLoanCommand.java
index 2cdaad6f2ba..c4c4a3c4474 100644
--- a/src/main/java/seedu/address/logic/commands/EditLoanCommand.java
+++ b/src/main/java/seedu/address/logic/commands/EditLoanCommand.java
@@ -6,6 +6,7 @@
 import static seedu.address.logic.parser.CliSyntax.PREFIX_START_DATE;
 import static seedu.address.logic.parser.CliSyntax.PREFIX_VALUE;
 
+import java.math.BigDecimal;
 import java.util.Date;
 import java.util.List;
 import java.util.Objects;
@@ -93,7 +94,7 @@ private String generateSuccessMessage(Loan editedLoan) {
 
     private LinkLoanDescriptor generateEditedLoanDetails(Loan loanToEdit, EditLoanDescriptor editedDetails)
             throws CommandException {
-        float newValue = editedDetails.getValue().orElse(loanToEdit.getValue());
+        BigDecimal newValue = editedDetails.getValue().orElse(loanToEdit.getValue());
         Date newStartDate = editedDetails.getStartDate().orElse(loanToEdit.getStartDate());
         Date newReturnDate = editedDetails.getReturnDate().orElse(loanToEdit.getReturnDate());
         requireAllNonNull(newValue, newStartDate, newReturnDate);
@@ -131,7 +132,7 @@ public String toString() {
      * Stores the details of the loan that is edited.
      */
     public static class EditLoanDescriptor {
-        private Float value = null;
+        private BigDecimal value = null;
         private Date startDate = null;
         private Date returnDate = null;
 
@@ -147,11 +148,11 @@ public boolean isAnyFieldEdited() {
             return CollectionUtil.isAnyNonNull(value, startDate, returnDate);
         }
 
-        public void setValue(float value) {
+        public void setValue(BigDecimal value) {
             this.value = value;
         }
 
-        public Optional<Float> getValue() {
+        public Optional<BigDecimal> getValue() {
             return Optional.ofNullable(value);
         }
 
diff --git a/src/main/java/seedu/address/logic/commands/LinkLoanCommand.java b/src/main/java/seedu/address/logic/commands/LinkLoanCommand.java
index b9b89a9db81..430f38fc5fc 100644
--- a/src/main/java/seedu/address/logic/commands/LinkLoanCommand.java
+++ b/src/main/java/seedu/address/logic/commands/LinkLoanCommand.java
@@ -6,6 +6,7 @@
 import static seedu.address.logic.parser.CliSyntax.PREFIX_START_DATE;
 import static seedu.address.logic.parser.CliSyntax.PREFIX_VALUE;
 
+import java.math.BigDecimal;
 import java.util.Date;
 import java.util.List;
 import java.util.Objects;
@@ -102,7 +103,7 @@ public String toString() {
      * Stores the details of the loan to be linked.
      */
     public static class LinkLoanDescriptor {
-        private float value;
+        private BigDecimal value;
         private Date startDate;
         private Date returnDate;
 
@@ -112,7 +113,7 @@ public static class LinkLoanDescriptor {
          * @param startDate The start date of the loan
          * @param returnDate The date which the loan must be returned by
          */
-        public LinkLoanDescriptor(float value, Date startDate, Date returnDate) {
+        public LinkLoanDescriptor(BigDecimal value, Date startDate, Date returnDate) {
             this.value = value;
             this.startDate = startDate;
             this.returnDate = returnDate;
@@ -127,11 +128,11 @@ public LinkLoanDescriptor(LinkLoanCommand.LinkLoanDescriptor toCopy) {
             setReturnDate(toCopy.returnDate);
         }
 
-        public void setValue(float value) {
+        public void setValue(BigDecimal value) {
             this.value = value;
         }
 
-        public float getValue() {
+        public BigDecimal getValue() {
             return value;
         }
 
diff --git a/src/main/java/seedu/address/logic/parser/ParserUtil.java b/src/main/java/seedu/address/logic/parser/ParserUtil.java
index 2065c6104f4..42f283da47b 100644
--- a/src/main/java/seedu/address/logic/parser/ParserUtil.java
+++ b/src/main/java/seedu/address/logic/parser/ParserUtil.java
@@ -3,6 +3,7 @@
 import static java.util.Objects.requireNonNull;
 import static seedu.address.commons.util.CollectionUtil.requireAllNonNull;
 
+import java.math.BigDecimal;
 import java.util.Collection;
 import java.util.Date;
 import java.util.HashSet;
@@ -135,7 +136,7 @@ public static Set<Tag> parseTags(Collection<String> tags) throws ParseException
     public static LinkLoanDescriptor parseLoan(String value, String startDate, String returnDate)
             throws ParseException {
         requireAllNonNull(value, startDate, returnDate);
-        float convertedValue = parseValue(value);
+        BigDecimal convertedValue = parseValue(value);
         Date convertedStartDate = parseDate(startDate);
         Date convertedReturnDate = parseDate(returnDate);
         if (!Loan.isValidDates(convertedStartDate, convertedReturnDate)) {
@@ -145,14 +146,14 @@ public static LinkLoanDescriptor parseLoan(String value, String startDate, Strin
     }
 
     /**
-     * Parses loan {@code String value} into a {@code float}.
+     * Parses loan {@code String value} into a {@code BigDecimal}.
      */
-    public static float parseValue(String value) throws ParseException {
+    public static BigDecimal parseValue(String value) throws ParseException {
         requireNonNull(value);
         String trimmedValue = value.trim();
-        float convertedValue;
+        BigDecimal convertedValue;
         try {
-            convertedValue = Float.parseFloat(trimmedValue);
+            convertedValue = new BigDecimal(trimmedValue);
         } catch (NumberFormatException n) {
             // Ths is caught when the formatter is unable to parse the value correctly
             throw new ParseException(Loan.VALUE_CONSTRAINTS);
diff --git a/src/main/java/seedu/address/model/ModelManager.java b/src/main/java/seedu/address/model/ModelManager.java
index 8882b430ee7..f431088f0a1 100644
--- a/src/main/java/seedu/address/model/ModelManager.java
+++ b/src/main/java/seedu/address/model/ModelManager.java
@@ -3,6 +3,7 @@
 import static java.util.Objects.requireNonNull;
 import static seedu.address.commons.util.CollectionUtil.requireAllNonNull;
 
+import java.math.BigDecimal;
 import java.nio.file.Path;
 import java.util.Date;
 import java.util.List;
@@ -261,7 +262,7 @@ public ObjectProperty<DashboardData> getDashboardData() {
 
     @Override
     public void generateDashboardData(Analytics analytics) {
-        float impactBenchmark = this.addressBook.getUniqueLoanList().getMaxLoanValue();
+        BigDecimal impactBenchmark = this.addressBook.getUniqueLoanList().getMaxLoanValue();
         Date urgencyBenchmark = this.addressBook.getUniqueLoanList().getEarliestReturnDate();
         dashboardData.setValue(new DashboardData(analytics, impactBenchmark, urgencyBenchmark));
     }
diff --git a/src/main/java/seedu/address/model/analytics/DashboardData.java b/src/main/java/seedu/address/model/analytics/DashboardData.java
index 604205d7abc..16703a2ace8 100644
--- a/src/main/java/seedu/address/model/analytics/DashboardData.java
+++ b/src/main/java/seedu/address/model/analytics/DashboardData.java
@@ -1,5 +1,7 @@
 package seedu.address.model.analytics;
 
+import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.time.LocalDate;
 import java.time.ZoneId;
 import java.util.Date;
@@ -15,7 +17,7 @@
  */
 public class DashboardData {
     private Analytics analytics;
-    private float maxLoanValue;
+    private BigDecimal maxLoanValue;
     private Date earliestReturnDate;
 
     /**
@@ -25,7 +27,7 @@ public class DashboardData {
      * @param maxLoanValue maximum loan value of all loans
      * @param earliestReturnDate earliest return date of all loans (not returned and not overdue)
      */
-    public DashboardData(Analytics analytics, float maxLoanValue, Date earliestReturnDate) {
+    public DashboardData(Analytics analytics, BigDecimal maxLoanValue, Date earliestReturnDate) {
         this.analytics = analytics;
         this.maxLoanValue = maxLoanValue;
         this.earliestReturnDate = earliestReturnDate;
@@ -35,18 +37,19 @@ public Analytics getAnalytics() {
         return analytics;
     }
 
-    public float getMaxLoanValue() {
+    public BigDecimal getMaxLoanValue() {
         return maxLoanValue;
     }
 
     /**
      * Calculates the impact index of the dashboard data
      * Impact index is calculated as the ratio of the average loan value to the maximum loan value
+     * to 2 decimal places.
      *
      * @return impact index between 0 and 1
      */
-    public float getImpactIndex() {
-        return analytics.getAverageLoanValue() / maxLoanValue;
+    public BigDecimal getImpactIndex() {
+        return analytics.getAverageLoanValue().divide(maxLoanValue, 2, RoundingMode.HALF_UP);
     }
 
     /**
diff --git a/src/main/java/seedu/address/model/person/Analytics.java b/src/main/java/seedu/address/model/person/Analytics.java
index cc418dc04a4..059335fa5e4 100644
--- a/src/main/java/seedu/address/model/person/Analytics.java
+++ b/src/main/java/seedu/address/model/person/Analytics.java
@@ -1,5 +1,7 @@
 package seedu.address.model.person;
 
+import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.util.Date;
 
 import javafx.collections.ObservableList;
@@ -16,13 +18,13 @@ public class Analytics {
     private float propOverdueLoans; // proportion of loans that are overdue over active loans
     private float propActiveLoans; // proportion of loans that are active over total loans
 
-    private float totalValueLoaned; // total value of all loans
-    private float totalValueOverdue; // total value of all overdue loans
-    private float totalValueActive; // total value of all active loans
+    private BigDecimal totalValueLoaned; // total value of all loans
+    private BigDecimal totalValueOverdue; // total value of all overdue loans
+    private BigDecimal totalValueActive; // total value of all active loans
 
-    private float averageLoanValue; // average loan value of all loans
-    private float averageOverdueValue; // average loan value of all overdue loans
-    private float averageActiveValue; // average loan value of all active loans
+    private BigDecimal averageLoanValue; // average loan value of all loans
+    private BigDecimal averageOverdueValue; // average loan value of all overdue loans
+    private BigDecimal averageActiveValue; // average loan value of all active loans
 
     private Date earliestLoanDate; // earliest loan date of all loans
     private Date earliestReturnDate; // earliest return date of active loans
@@ -37,13 +39,13 @@ private Analytics() {
         this.propOverdueLoans = 0;
         this.propActiveLoans = 0;
 
-        this.totalValueLoaned = 0;
-        this.totalValueOverdue = 0;
-        this.totalValueActive = 0;
+        this.totalValueLoaned = BigDecimal.ZERO;
+        this.totalValueOverdue = BigDecimal.ZERO;
+        this.totalValueActive = BigDecimal.ZERO;
 
-        this.averageLoanValue = 0;
-        this.averageOverdueValue = 0;
-        this.averageActiveValue = 0;
+        this.averageLoanValue = BigDecimal.ZERO;
+        this.averageOverdueValue = BigDecimal.ZERO;
+        this.averageActiveValue = BigDecimal.ZERO;
 
         this.earliestLoanDate = null;
         this.earliestReturnDate = null;
@@ -83,12 +85,12 @@ private void updatePropFields() {
      * @param loan The loan to update the fields with.
      */
     private void updateValueFields(Loan loan) {
-        this.totalValueLoaned += loan.getValue();
+        totalValueLoaned = totalValueLoaned.add(loan.getValue());
         if (loan.isOverdue()) {
-            this.totalValueOverdue += loan.getValue();
+            totalValueOverdue = totalValueOverdue.add(loan.getValue());
         }
         if (loan.isActive()) {
-            this.totalValueActive += loan.getValue();
+            totalValueActive = totalValueActive.add(loan.getValue());
         }
     }
 
@@ -97,14 +99,17 @@ private void updateValueFields(Loan loan) {
      * This method should be called after the fields that calculate the total value of various loans have been updated.
      */
     private void updateAverageFields() {
-        if (this.numActiveLoans > 0) {
-            this.averageActiveValue = this.totalValueActive / this.numActiveLoans;
+        if (numActiveLoans > 0) {
+            averageActiveValue = totalValueActive.divide(BigDecimal.valueOf(numActiveLoans),
+                    2, RoundingMode.HALF_UP);
         }
-        if (this.numOverdueLoans > 0) {
-            this.averageOverdueValue = this.totalValueOverdue / this.numOverdueLoans;
+        if (numOverdueLoans > 0) {
+            averageOverdueValue = totalValueOverdue.divide(BigDecimal.valueOf(numOverdueLoans),
+                    2, RoundingMode.HALF_UP);
         }
-        if (this.numLoans > 0) {
-            this.averageLoanValue = this.totalValueLoaned / this.numLoans;
+        if (numLoans > 0) {
+            averageLoanValue = totalValueLoaned.divide(BigDecimal.valueOf(this.numLoans),
+                    2, RoundingMode.HALF_UP);
         }
     }
 
@@ -171,27 +176,27 @@ public float getPropActiveLoans() {
         return propActiveLoans;
     }
 
-    public float getTotalValueLoaned() {
+    public BigDecimal getTotalValueLoaned() {
         return totalValueLoaned;
     }
 
-    public float getTotalValueOverdue() {
+    public BigDecimal getTotalValueOverdue() {
         return totalValueOverdue;
     }
 
-    public float getTotalValueActive() {
+    public BigDecimal getTotalValueActive() {
         return totalValueActive;
     }
 
-    public float getAverageLoanValue() {
+    public BigDecimal getAverageLoanValue() {
         return averageLoanValue;
     }
 
-    public float getAverageOverdueValue() {
+    public BigDecimal getAverageOverdueValue() {
         return averageOverdueValue;
     }
 
-    public float getAverageActiveValue() {
+    public BigDecimal getAverageActiveValue() {
         return averageActiveValue;
     }
 
diff --git a/src/main/java/seedu/address/model/person/Loan.java b/src/main/java/seedu/address/model/person/Loan.java
index ab448f199bb..c8ee318f6c3 100644
--- a/src/main/java/seedu/address/model/person/Loan.java
+++ b/src/main/java/seedu/address/model/person/Loan.java
@@ -2,6 +2,7 @@
 
 import static seedu.address.commons.util.CollectionUtil.requireAllNonNull;
 
+import java.math.BigDecimal;
 import java.util.Date;
 
 import seedu.address.commons.util.DateUtil;
@@ -18,7 +19,7 @@ public class Loan implements Comparable<Loan> {
     public static final String VALUE_CONSTRAINTS = "Loan values must be a positive number.";
 
     private final int id;
-    private final float value;
+    private final BigDecimal value;
     private final Date startDate;
     private final Date returnDate;
     private boolean isReturned;
@@ -33,7 +34,7 @@ public class Loan implements Comparable<Loan> {
      * @param returnDate A valid return date.
      * @param assignee   A valid assignee.
      */
-    public Loan(int id, float value, Date startDate, Date returnDate, Person assignee) {
+    public Loan(int id, BigDecimal value, Date startDate, Date returnDate, Person assignee) {
         requireAllNonNull(id, value, startDate, returnDate, assignee);
         assert isValidValue(value);
         assert id >= 0;
@@ -55,7 +56,7 @@ public Loan(int id, float value, Date startDate, Date returnDate, Person assigne
      * @param isReturned A valid return status.
      * @param assignee   A valid assignee.
      */
-    public Loan(int id, float value, Date startDate, Date returnDate, boolean isReturned, Person assignee) {
+    public Loan(int id, BigDecimal value, Date startDate, Date returnDate, boolean isReturned, Person assignee) {
         requireAllNonNull(id, value, startDate, returnDate, isReturned, assignee);
         assert isValidValue(value);
         assert id >= 0;
@@ -68,10 +69,10 @@ public Loan(int id, float value, Date startDate, Date returnDate, boolean isRetu
     }
 
     /**
-     * Returns true if a given float is a valid value.
+     * Returns true if a given BigDecimal is a valid value.
      */
-    public static boolean isValidValue(float value) {
-        return value > 0;
+    public static boolean isValidValue(BigDecimal value) {
+        return value.compareTo(BigDecimal.ZERO) > 0;
     }
 
     /**
@@ -85,7 +86,7 @@ public int getId() {
         return id;
     }
 
-    public float getValue() {
+    public BigDecimal getValue() {
         return value;
     }
 
diff --git a/src/main/java/seedu/address/model/person/UniqueLoanList.java b/src/main/java/seedu/address/model/person/UniqueLoanList.java
index 86726bea839..395ae61ea27 100644
--- a/src/main/java/seedu/address/model/person/UniqueLoanList.java
+++ b/src/main/java/seedu/address/model/person/UniqueLoanList.java
@@ -2,6 +2,7 @@
 
 import static java.util.Objects.requireNonNull;
 
+import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashSet;
@@ -56,7 +57,7 @@ public void addLoan(Loan loan) {
      * @param startDate A valid start date.
      * @param returnDate A valid return date.
      */
-    public Loan addLoan(float value, Date startDate, Date returnDate, Person assignee) {
+    public Loan addLoan(BigDecimal value, Date startDate, Date returnDate, Person assignee) {
         Loan loan = new Loan(nextLoanId, value, startDate, returnDate, assignee);
         addLoan(loan);
         return loan;
@@ -68,7 +69,7 @@ public Loan addLoan(float value, Date startDate, Date returnDate, Person assigne
      * @param loanDescription A valid LinkLoanDescriptor, which contains details about the loan to be added.
      */
     public Loan addLoan(LinkLoanDescriptor loanDescription, Person assignee) {
-        float value = loanDescription.getValue();
+        BigDecimal value = loanDescription.getValue();
         Date startDate = loanDescription.getStartDate();
         Date returnDate = loanDescription.getReturnDate();
         return addLoan(value, startDate, returnDate, assignee);
@@ -82,7 +83,7 @@ public Loan addLoan(LinkLoanDescriptor loanDescription, Person assignee) {
      * @param returnDate A valid return date.
      * @throws IllegalValueException If the date string is not in the correct format.
      */
-    public void addLoan(float value, String startDate, String returnDate, Person assignee)
+    public void addLoan(BigDecimal value, String startDate, String returnDate, Person assignee)
             throws IllegalValueException {
         try {
             Date start = DateUtil.parse(startDate);
@@ -332,11 +333,11 @@ public void modifyLoanAssignee(Person target, Person editedPerson) {
      *
      * @return The maximum loan value of all loans.
      */
-    public int getMaxLoanValue() {
-        int maxLoanValue = 0;
+    public BigDecimal getMaxLoanValue() {
+        BigDecimal maxLoanValue = BigDecimal.ZERO;
         for (Loan loan : internalList) {
-            if (loan.getValue() > maxLoanValue) {
-                maxLoanValue = (int) loan.getValue();
+            if (loan.getValue().compareTo(maxLoanValue) > 0) {
+                maxLoanValue = loan.getValue();
             }
         }
         return maxLoanValue;
diff --git a/src/main/java/seedu/address/model/util/SampleDataUtil.java b/src/main/java/seedu/address/model/util/SampleDataUtil.java
index c9a19f47e15..3e6d09a6b7b 100644
--- a/src/main/java/seedu/address/model/util/SampleDataUtil.java
+++ b/src/main/java/seedu/address/model/util/SampleDataUtil.java
@@ -1,5 +1,6 @@
 package seedu.address.model.util;
 
+import java.math.BigDecimal;
 import java.util.Arrays;
 import java.util.Set;
 import java.util.stream.Collectors;
@@ -49,7 +50,8 @@ public static Person[] getSamplePersons() {
     public static LinkLoanCommand.LinkLoanDescriptor[] getSampleLoans() {
         LinkLoanCommand.LinkLoanDescriptor loanDescriptor;
         try {
-            loanDescriptor = new LinkLoanCommand.LinkLoanDescriptor(100, DateUtil.parse("2021-10-10"),
+            loanDescriptor = new LinkLoanCommand.LinkLoanDescriptor(BigDecimal.valueOf(100),
+                    DateUtil.parse("2021-10-10"),
                     DateUtil.parse("2021-12-10"));
             return new LinkLoanCommand.LinkLoanDescriptor[] {
                 loanDescriptor
diff --git a/src/main/java/seedu/address/storage/JsonAdaptedLoan.java b/src/main/java/seedu/address/storage/JsonAdaptedLoan.java
index 300819c4a1a..7e92a66c215 100644
--- a/src/main/java/seedu/address/storage/JsonAdaptedLoan.java
+++ b/src/main/java/seedu/address/storage/JsonAdaptedLoan.java
@@ -1,5 +1,7 @@
 package seedu.address.storage;
 
+import java.math.BigDecimal;
+
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
@@ -12,7 +14,7 @@
  */
 public class JsonAdaptedLoan {
 
-    private final float value;
+    private final BigDecimal value;
     private final String startDate;
     private final String returnDate;
     private final int id;
@@ -23,7 +25,7 @@ public class JsonAdaptedLoan {
      * Constructs a {@code JsonAdaptedLoan} with the given loan details.
      */
     @JsonCreator
-    public JsonAdaptedLoan(@JsonProperty("value") float value, @JsonProperty("startDate") String startDate,
+    public JsonAdaptedLoan(@JsonProperty("value") BigDecimal value, @JsonProperty("startDate") String startDate,
                            @JsonProperty("returnDate") String returnDate, @JsonProperty("id") int id,
                            @JsonProperty("isReturned") boolean isReturned,
                            @JsonProperty("assignee") JsonAdaptedPerson assignee) {
diff --git a/src/main/java/seedu/address/ui/AnalyticsPanel.java b/src/main/java/seedu/address/ui/AnalyticsPanel.java
index a25810b07b3..4565eab21a0 100644
--- a/src/main/java/seedu/address/ui/AnalyticsPanel.java
+++ b/src/main/java/seedu/address/ui/AnalyticsPanel.java
@@ -1,5 +1,7 @@
 package seedu.address.ui;
 
+import java.math.BigDecimal;
+
 import javafx.beans.property.ObjectProperty;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
@@ -75,17 +77,17 @@ private void updateChart(DashboardData data) {
         }
 
 
-        if (data.getMaxLoanValue() == 0) {
+        if (data.getMaxLoanValue().compareTo(BigDecimal.ZERO) == 0) {
             impactIndex.setText("No loans to analyze");
             impactChart.setVisible(false);
         } else {
             impactChart.setVisible(true);
             ObservableList<PieChart.Data> impactData = FXCollections.observableArrayList(
-                    new PieChart.Data("Impact Index", data.getImpactIndex()),
-                    new PieChart.Data("", 1 - data.getImpactIndex())
+                    new PieChart.Data("Impact Index", data.getImpactIndex().doubleValue()),
+                    new PieChart.Data("", 1 - data.getImpactIndex().doubleValue())
             );
             impactChart.setData(impactData);
-            impactIndex.setText(String.format("%.2f", data.getImpactIndex() * 100) + "%");
+            impactIndex.setText(String.format("%.2f", data.getImpactIndex().doubleValue() * 100) + "%");
         }
         if (data.getUrgencyIndex() == null) {
             urgencyIndex.setText("No due loans to analyze");
diff --git a/src/test/java/seedu/address/testutil/TypicalPersonsWithLoans.java b/src/test/java/seedu/address/testutil/TypicalPersonsWithLoans.java
index 71478a4b7bc..3cdcdae2c0e 100644
--- a/src/test/java/seedu/address/testutil/TypicalPersonsWithLoans.java
+++ b/src/test/java/seedu/address/testutil/TypicalPersonsWithLoans.java
@@ -11,6 +11,7 @@
 import static seedu.address.logic.commands.CommandTestUtil.VALID_TAG_FRIEND;
 import static seedu.address.logic.commands.CommandTestUtil.VALID_TAG_HUSBAND;
 
+import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -68,11 +69,11 @@ private TypicalPersonsWithLoans() {} // prevents instantiation
     public static UniqueLoanList loanRecords() {
         UniqueLoanList uniqueLoanList = new UniqueLoanList();
         try {
-            uniqueLoanList.addLoan(100F, DateUtil.parse("2020-01-01"),
+            uniqueLoanList.addLoan(BigDecimal.valueOf(100), DateUtil.parse("2020-01-01"),
                     DateUtil.parse("2020-01-13"), ALICE);
-            uniqueLoanList.addLoan(200F, DateUtil.parse("2020-02-01"),
+            uniqueLoanList.addLoan(BigDecimal.valueOf(200), DateUtil.parse("2020-02-01"),
                     DateUtil.parse("2020-02-13"), BENSON);
-            uniqueLoanList.addLoan(300F, DateUtil.parse("2020-02-13"),
+            uniqueLoanList.addLoan(BigDecimal.valueOf(300), DateUtil.parse("2020-02-13"),
                     DateUtil.parse("2020-02-14"), CARL);
         } catch (IllegalValueException e) {
             e.printStackTrace();