diff --git a/src/components/knockGold/Dialog.jsx b/src/components/knockGold/Dialog.jsx
index 8ebec8e8..99c6e970 100644
--- a/src/components/knockGold/Dialog.jsx
+++ b/src/components/knockGold/Dialog.jsx
@@ -120,7 +120,10 @@ export default ({ data, onChangeMoney }) => {
           预估充值后剩余余额为
           <span className='blue'>
             {' '}
-            {Math.floor(stateData?.used_amount * 100) / 100 +
+            {Math.floor(
+              (stateData?.recharge_amount - stateData?.used_amount) * 100
+            ) /
+              100 +
               (stateData?.addNew ? stateData.addNew - 0 : 0)}{' '}
           </span>
           元