diff --git a/frontend/src/pages/DailyCashUp.tsx b/frontend/src/pages/DailyCashUp.tsx
index ae6a1c2..e63d743 100644
--- a/frontend/src/pages/DailyCashUp.tsx
+++ b/frontend/src/pages/DailyCashUp.tsx
@@ -26,7 +26,7 @@ function initMachines(): CardMachine[] {
 }
 
 function denomTotal(denoms: Denomination[]) {
-  return denoms.reduce((s, d) => s + d.total_amount, 0)
+  return denoms.reduce((s, d) => s + (Number(d.total_amount) || 0), 0)
 }
 
 interface Props { user: User }
@@ -70,7 +70,12 @@ export function DailyCashUp({ user: _user }: Props) {
           s => s.count_type === ct && parseFloat(String(s.denomination_value)) === d.value
         )
         return saved
-          ? { ...saved, denomination_value: d.value }
+          ? {
+              ...saved,
+              denomination_value: d.value,
+              total_amount: parseFloat(String(saved.total_amount)) || 0,
+              value_entered: saved.value_entered != null ? parseFloat(String(saved.value_entered)) : null,
+            }
           : { count_type: ct, denomination_type: d.type, denomination_value: d.value, quantity: null, value_entered: null, total_amount: 0 }
       })