A company selling office chairs for $250 per chair and will offer discounts according to the following table: Quantity 10 - 19 20 - 29 30-39 40 or more Discount 5% 7.5% 10% Using functional decomposition, write a program in Python (with functions) that will prompt user to enter the number of chairs sold then calculate the total to pay without discount, the amount of discount if there is any, and the grand total to pay (less discount amount). You should output the following: Amount of chairs sold 12.5% Gross amount to pay (without discount) Discount % (if there is any discount) Discount Amount (if there is any discount) Net amount to pay (Gross amount less discount amount) 2 You will need to have a main () function that will contain your main logic. In addition, other functions for the calculation and the display of output. You should name your functions in a way that reflect what the function will do.