Standard Appliances obtains refrigerators for $1,510 less 27% and 7%. Standard's overhead is 18% of the selling price of $1,550. A scratched demonstrator unit from their floor display was cleared out for $1,225. a. What is the regular rate of markup on cost? % Round to two decimal places b. What is the rate of markdown on the demonstrator unit? c. What is the operating profit or loss on the demostrator unit? Round to the nearest cent d. What is the rate of markup on cost that was actually realized? % Round to two decimal places k