diff --git a/addons/point_of_sale/static/src/app/utils/money_details_popup/money_details_popup.js b/addons/point_of_sale/static/src/app/utils/money_details_popup/money_details_popup.js
index 9fa4e281f3a..81aa6b060a4 100644
--- a/addons/point_of_sale/static/src/app/utils/money_details_popup/money_details_popup.js
+++ b/addons/point_of_sale/static/src/app/utils/money_details_popup/money_details_popup.js
@@ -21,10 +21,10 @@ export class MoneyDetailsPopup extends AbstractAwaitablePopup {
         });
     }
     computeTotal(moneyDetails = this.state.moneyDetails) {
-        return Object.entries(moneyDetails).reduce(
-            (total, money) => total + money[0] * money[1],
-            0
-        );
+        return Object.entries(moneyDetails).reduce((total, [value, inputQty]) => {
+            const quantity = isNaN(inputQty) ? 0 : inputQty;
+            return total + parseFloat(value) * quantity;
+        }, 0);
     }
     //@override
     async getPayload() {