diff --git a/chapter2/mysite/myapp/templatetags/myapp.py b/chapter2/mysite/myapp/templatetags/myapp.py
index bc8593e..eed2b7c 100644
--- a/chapter2/mysite/myapp/templatetags/myapp.py
+++ b/chapter2/mysite/myapp/templatetags/myapp.py
@@ -6,4 +6,4 @@ register = template.Library()
 @register.simple_tag
 def present(val1, val2):
     """获取两个数的百分比，取整 val1 / val2 """
-    return int(val1 * 100 / val2)
\ No newline at end of file
+    return int(int(val1) * 100 / int(val2))
\ No newline at end of file