修改

app/Service/LargeScreenService.php

@@ -1048,7 +1048,7 @@ class LargeScreenService extends Service
             ->toArray();
         $seven_days = [];
         $sum = 0;
-        if(! empty($waste)) $sum = array_sum(array_values($waste));
+        if(! empty($waste)) $sum = number_format(array_sum(array_values($waste)),2);
         foreach ($map_1 as $key => $value){
             if(isset($waste[$key])){
                 $seven_days[] = [