3 A barbeque cost a retailer $451.00 less 18-%, 12%, 9%. Markup is 57% of the regular selling price. During the end-of-season sale, the barbeque is marked down 24%. (a) What is the end-of-season sale price? (b) What rate of markup based on cost will be realized during the sale? (a) The end-of-season sale price of the barbeque is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)