diff --git a/asg_form/Controllers/Com.cs b/asg_form/Controllers/Com.cs
index 60cf32c..228c0f0 100644
--- a/asg_form/Controllers/Com.cs
+++ b/asg_form/Controllers/Com.cs
@@ -301,7 +301,7 @@ namespace asg_form.Controllers
         public long cut_value(long value)
         {
             long _value = value;
-            value = value - 10;
+            value = value - 5;
             if (value < 0)
             {
                 throw new ArgumentException("你已经没钱啦！");