A marketing company's salespeople receive a base salary of $2000 and a commission based on their monthly sales. Write a program that reads monthly sales of an employee, calculates the commission earned and total gross pay before any deductions and prints the monthly sales, commission earned, and total gross pay. (10 marks) Monthly Sales Commission Rate $0-$4999 $5 000 - $9 999 $10 000 - $24 999 $25 000 or above 0% 7 % 10% 12% commission earned = monthly sales x commission rate/100 gross pay = base salary + commission earned