Revert "Delete Sprint-2/3-mandatory-interpret/1-percentage-change.js"

This reverts commit add8d2e.

Author: abmhts

Sprint-2/3-mandatory-interpret/1-percentage-change.js

@@ -0,0 +1,32 @@
+let carPrice = "10,000";
+let priceAfterOneYear = "8,543";
+
+carPrice = Number(carPrice.replaceAll(",", ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+
+const priceDifference = carPrice - priceAfterOneYear;
+const percentageChange = (priceDifference / carPrice) * 100;
+
+console.log(`The percentage change is ${percentageChange}`);
+
+// Read the code and then answer the questions below
+
+// a) How many function calls are there in this file? Write down all the lines where a function call is made
+      4 function calls
+    -Number(carPrice.replaceAll(",", ""))
+    -replaceAll(",", "")
+    -Number(priceAfterOneYear.replaceAll("," ""))
+    -replaceAll("," "")
+// b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
+    -Line 5
+    -missing ) after argument list
+    -why: replaceAll() needs two arguments separated by a comma.
+    -fix: by adding comma replaceAll(",", "")
+// c) Identify all the lines that are variable reassignment statements
+      line 4 and 5
+
+// d) Identify all the lines that are variable declarations
+    line 1,2,7 and 8
+// e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+    -First removing the comma "10,000"
+    -Second convert string into number 10000