Costco can purchase a bag of Starbucks coffee for $24.00 less discounts of 20%, 15%, and 7%. It then adds a 40% markup on cost. Expenses are known to be 25% of the regular unit selling price.

a. What is the cost of the coffee?

b. What is the regular unit selling price?

c. How much profit will Costco make on a bag of Starbucks coffee?

d. What markup on selling price percentage does this represent?