An appliance store sold GE coffeemakers for $22.95 during a promotional sale. The store bought the coffeemakers

Question:

An appliance store sold GE coffeemakers for $22.95 during a promotional sale. The store bought the coffeemakers for $36 less 40% and 15%. Overhead is 25% of the regular selling price.
(a) If the store’s markup is 40% of the regular selling price, what was the rate of markdown?
(b)What operating profit or loss was made during the sale?