add

application/Admin/Controller/WelfareController.class.php

@@ -133,7 +133,7 @@ class WelfareController extends AdminbaseController
     function resetcache(){
         $key='welfare_rate';
 
-        $level= M("welfare_rate")->where('id!=1')->order("id rate")->select();
+        $level= M("welfare_rate")->where('id!=1')->order("rate desc")->select();
         if($level){
             setcaches($key,$level);
         }