Fix syntax error in convertToPercentage function

Updated the explanation for the error and corrected the function declaration to avoid syntax errors.

Author: Alex-Os-Dev-Lab

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

@@ -1,9 +1,9 @@
 // Predict and explain first...
 
 // Why will an error occur when this program runs?
-// =============> It will likely be a reference error because the variable decimalNumber is not defined in the global scope
-//                and is only declared within the function convertToPercentage. When we try to log decimalNumber outside of the function,
-//                it will not be accessible and will throw an error indicating that decimalNumber is not defined.
+// =============> The error occurs because the variable `decimalNumber` is declared twice in the function `convertToPercentage`. 
+//                The first declaration is in the function parameter, and the second declaration is inside the function body. 
+//                This causes a conflict and results in a syntax error.
 
 // Try playing computer with the example to work out what is going on
 
@@ -16,15 +16,17 @@
 
 //console.log(decimalNumber);
 
-// =============> write your explanation here
+// =============> when you run this code it will start by executing the console.log statement and it will look for the variable `decimalNumber`; 
+//                since it is already declared we will get a syntax error and the program will stop executing.
 
 // Finally, correct the code to fix the problem
 // =============> write your new code here
 
-function convertToPercentage(a) {
-  const decimalNumber = 0.5;
+function convertToPercentage(decimalNumber) {
   const percentage = `${decimalNumber * 100}%`;
 
   return percentage;
 }
-console.log(convertToPercentage(0.5));
+
+const result = convertToPercentage(0.5);
+console.log(result);