C++
A software company sells a package that retails for $99. Quantity discounts are given according to the following table.

Quantity Discount

10-19 20%
20-49 30%
50-99 40%
100 or more 50%

Write a program that asks for the number of units sold and computes the total cost of the purchases.
Input validation: Make sure the number of units is greater than 0

The output should be appropriately formatted; in particular, dollar amounts should show two digits after the decimal.
Show the regular price, the discount, and the discounted price for the transaction in a table.

Please write a c++ program in the simplest manner possible. This is my first programming class. Help is highly appreciated