write a program that ask the user the number of packages purchased. the program should then display the amount of discount (if theres any) and the total amount of purchased after the discount.
a software company sell package that retails for 5,000. quantity discounts written below.
quantity 10-19 = 20% discount
quantity 20-49= 30% discount
quantity 50-99=40% discount
quantity 100 and up = 50% discount