diff --git a/kolibri/core/assets/src/views/ExamReport/TriesOverview.vue b/kolibri/core/assets/src/views/ExamReport/TriesOverview.vue
index 55c8b4d3aed..83a3b85a4ff 100644
--- a/kolibri/core/assets/src/views/ExamReport/TriesOverview.vue
+++ b/kolibri/core/assets/src/views/ExamReport/TriesOverview.vue
@@ -126,11 +126,9 @@
         return this.pastTries.length ? Math.max(...this.pastTries.map(t => t.correct)) : null;
       },
       bestScore() {
-        const bestScoreAttempt = this.pastTries.find(t => t.correct === this.maxQuestionsCorrect);
-        if (!bestScoreAttempt) {
-          return null;
-        }
-        return bestScoreAttempt.time_spent;
+        return this.maxQuestionsCorrect !== null
+          ? this.maxQuestionsCorrect / this.totalQuestions
+          : null;
       },
       suggestedTimeAnnotation() {
         if (!this.suggestedTime || this.bestTimeSpent === null) {
diff --git a/kolibri/core/assets/src/views/ExamReport/__tests__/TriesOverview.spec.js b/kolibri/core/assets/src/views/ExamReport/__tests__/TriesOverview.spec.js
index 83066bc85b9..05acce0b770 100644
--- a/kolibri/core/assets/src/views/ExamReport/__tests__/TriesOverview.spec.js
+++ b/kolibri/core/assets/src/views/ExamReport/__tests__/TriesOverview.spec.js
@@ -59,7 +59,7 @@ describe('TriesOverview', () => {
     });
 
     test('renders progress icon and not started label when there are no past tries', () => {
-      renderComponent({ pastTries: [] });
+      renderComponent();
 
       expect(screen.getByTestId('progress-icon-0')).toBeInTheDocument();
       expect(screen.getByText('notStartedLabel')).toBeInTheDocument();