Standard Appliances obtains refrigerators for $1,530 less 27% and 7%. Standard's overhead is 20% of the selling price of $1,595. A scratched demonstrator unit from their floor display was cleared out for $1,205. a. What is the regular rate of markup on cost? b. What is the rate of markdown on the demonstrator unit? c. What is the operating profit or loss on the demostrator unit? d. What is the rate of markup on cost that was actually realized?