Standard Appliances obtains refrigerators for $1,550 less 25% and 10%. Standard's overhead is 18% of the selling price of $1,625. A scratched demonstrator unit from their floor display was cleared out for $1,275.

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? % Round to two decimal places