fix error 1

Author: Alaterry8

Sprint-3/1-key-errors/1.js

@@ -1,7 +1,7 @@
 // Predict and explain first...
 
 // Why will an error occur when this program runs?
-// =============> write your prediction here
+// because the decimanlNumber variable has already been declared and you cant declare it twice, also the parameter needs to not be tied to any value so it works as intended
 
 // Try playing computer with the example to work out what is going on
 
@@ -15,6 +15,14 @@ function convertToPercentage(decimalNumber) {
 console.log(decimalNumber);
 
 // =============> write your explanation here
+// decimalNumber creates a variable in the function scope, then const decimalNumber tries to create a variable with the same name in that same scope, then it hits a Syntax error. Then the program stops running
 
 // Finally, correct the code to fix the problem
-// =============> write your new code here
+
+function convertToPercentage(decimalNumber) {
+  const percentage = (`${decimalNumber * 100}%`);
+
+  return percentage;
+}
+
+console.log(convertToPercentage(0.5));