JavaScript program to calculate salary hike

Following program shows you how to calculate salary hike.
In this program we get salary per month and hike from user and calculate new salary with hike using following formula
Salary hike = oldSalaryPerMonth + (oldSalaryPerMonth X hike/100)

var oldSalaryPerMonth = parseInt(prompt("Enter your old salary per month:"));
var hike = parseInt(prompt("Enter your hike percentage:"));
var presentSalaryPerMonth = oldSalaryPerMonth + (oldSalaryPerMonth * hike/100);
console.log("After hike your present salary per month is: " + presentSalaryPerMonth);

Output:

Enter your old salary per month:
50000
Enter your hike percentage:
10
After hike your present salary per month is: 55000