Refactor comments to clarify error prediction and explanation for convertToPercentage function

Author: MohammedNaru

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

@@ -1,7 +1,10 @@
 // Predict and explain first...
-
+// I predict that the code will throw an error when trying to call the function convertToPercentage with a decimal input
+// because the variable 'decimalNumber' is being declared twice within the same scope, which is not allowed in JavaScript.
 // Why will an error occur when this program runs?
-// =============> write your prediction here
+// The code will throw a SyntaxError because the variable 'decimalNumber' is being declared twice within the same scope.
+
+
 
 // Try playing computer with the example to work out what is going on
 
@@ -16,5 +19,11 @@ console.log(decimalNumber);
 
 // =============> write your explanation here
 
-// Finally, correct the code to fix the problem
+// The code will throw a SyntaxError because the variable 'decimalNumber' is being declared twice within the same scope.
 // =============> write your new code here
+
+function convertToPercentage(decimalNumber) {
+  decimalNumber = 0.5;
+  const percentage = `${decimalNumber * 100}%`;
+
+  return percentage;