Standard Appliances obtains refrigerators for $1,550 less 27% and 9%. Standard's overhead is 16% of the selling price of $1,625. A scratched demonstrator unit from their floor display was cleared out for $1,280.

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?

%