diff --git a/src/stores/utils/index.ts b/src/stores/utils/index.ts
index 043efd74..25dbb240 100644
--- a/src/stores/utils/index.ts
+++ b/src/stores/utils/index.ts
@@ -440,7 +440,7 @@ export function commaInput(text: string): string {
 
   const parts = num.toString().split('.');
   const integerPart = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',');
-  const decimalPart = parts[1]?.slice(0, 2) || '';
+  const decimalPart = parts[1]?.slice(0, 2) || '00';
 
   return integerPart + (decimalPart ? `.${decimalPart}` : '');
 }