Fix variable redeclaration in convertToPercentage function

Author: MohammedNaru

Sprint-2/1-key-errors/1.js

@@ -23,7 +23,6 @@ console.log(decimalNumber);
 // =============> write your new code here
 
 function convertToPercentage(decimalNumber) {
-  decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
-
-  return percentage;
+  return percentage;
+}