diff --git a/app/common/model/Home/Home.php b/app/common/model/Home/Home.php
index eed54d5..844513c 100644
--- a/app/common/model/Home/Home.php
+++ b/app/common/model/Home/Home.php
@@ -106,7 +106,9 @@ class Home
         };
 
         //上升百分比计算
-        $percentage = round((($today_total_count - $yesterday_total_count) /  $yesterday_total_count) * 100, 2);
+        $dividend =  ($today_total_count - $yesterday_total_count);
+        $divisor =  $yesterday_total_count == 0 ? 1 : $yesterday_total_count;
+        $percentage = round(($dividend /  $divisor) * 100, 2);
 
         return [
             'count' => $today_total_count,