diff --git a/frontend/pages/question.json b/frontend/pages/question.json
index d727cd5..33f943f 100644
--- a/frontend/pages/question.json
+++ b/frontend/pages/question.json
@@ -221,7 +221,7 @@
             "name": "wrong_rate",
             "label": "错误率",
             "type": "tpl",
-            "tpl": "${wrong_rate * 100}%"
+            "tpl": "<%= (data.wrong_rate * 100).toFixed(2) %>%"
           }
         ]
       }