Fix variable redeclaration and simplify percentage conversion

Author: Yonatanteklemariam

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

@@ -7,13 +7,11 @@
 
 
 function convertToPercentage(decimalNumber) {
-  const decimalNumber = 0.5;
-  const percentage = `${decimalNumber * 100}%`;
-
-
-  return percentage;
+  return `${decimalNumber * 100}%`;
 }
 
+console.log(convertToPercentage(0.1));
+
 
 console.log(decimalNumber);
 // =============> it says decimalNumber has aleady been declared for the above reason.