diff --git a/frontend/src/ts/ervu_business_metrics/formatter/NumberToLocalStringFormatter.ts b/frontend/src/ts/ervu_business_metrics/formatter/NumberToLocalStringFormatter.ts
index 58bc674..57de410 100644
--- a/frontend/src/ts/ervu_business_metrics/formatter/NumberToLocalStringFormatter.ts
+++ b/frontend/src/ts/ervu_business_metrics/formatter/NumberToLocalStringFormatter.ts
@@ -3,7 +3,6 @@ import {FormatterUtils} from "./FormatterUtils";
 
 export class NumberToLocalStringFormatter implements TextFormatter {
   format(value: string): string {
-    var result =  FormatterUtils.toLocalString(value);
-    return result ? result : '0';
+    return value ? FormatterUtils.toLocalString(value) : '0';
   }
 }