Standard Appliances obtains refrigerators for $1,610 less 27% and 5%. Standard's overhead is 19% of the selling price of $1,680. A scratched demonstrator unit from their floor display was cleared out for $1,325. a. What is the regular rate of markup on cost? 0.00 % Round to two decimal places b. What is the rate of markdown on the demonstrator unit? 0.00 %