A retail outlet purchased 400 earphones at a list price of $120 less 7%, and 5%. The markup on the selling price percentage of the earphones was 40%. After selling 50% of the shipment, the rest of the earphones were marked down to a reduced selling price. When there were only 30 earphones left, the outlet marked these down to $94.99. Assume the outlet will sell the remaining earphones at this price. The outlet hopes to maintain an average markup on selling price percentage of 30%. Your answer(s) should be rounded to the nearest cent.

a) What is the total cost?

b) What is the regular selling price?

c) What are the total sales?

d) What must have been the sale price of the digital cameras?