update

common/business/ExchangeBusiness.php

@@ -80,7 +80,7 @@ class ExchangeBusiness
         foreach ($quotation as $key => $item) {
             $quotation[$key] = (float) sprintf("%0.4f", (double) $item);
         }
-        $quotation['rmb'] = (float) sprintf("%0.4f", 6.6 * $quotation['last']);
+        $quotation['rmb'] = number_format(6.6 * $quotation['last'],4);
         return $quotation;
     }