diff --git a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Enums/GoodsTypeEnum.cs b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Enums/GoodsTypeEnum.cs
index 2a01fed7..f46ad8c3 100644
--- a/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Enums/GoodsTypeEnum.cs
+++ b/Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain.Shared/Enums/GoodsTypeEnum.cs
@@ -271,11 +271,10 @@ public static class GoodsTypeEnumExtensions
         {
             return 0m;
         }
-
-        // 每10元减10元
-        var discountAmount = Math.Floor(totalRechargeAmount / 10m);
-
-        // 最多减少50元
+        // 每满 10 元减 10 元
+        var discountTimes = Math.Floor(totalRechargeAmount / 10m);
+        var discountAmount = discountTimes * 10m;
+        // 最多减少 50 元
         return Math.Min(discountAmount, 50m);
     }