23. LOO Sight and Sound bought large-screen colour TV sets for $1080.00 less 33' 83 %and 813%. Overhead is 18% of regular selling price and required profit is 15'3%of regular selling price. The TV sets were marked at a price so that the store was able to advertise a discount of 25% while still maintaining its margin. To clear the inventory, the remaining TV sets were marked down 37' 2 %. (a) What operating profit or loss is realized at the clearance price? (b) What is the realized rate of markup based on cost