TopKnotch Mfg. Co. has a production cost of $280. It sells its product to a wholesaler for $400. The wholesaler then sells the item to retailers for $500 and the retailers sell the item for $1,000.

A. What is the retailer’s markup percentage on selling price?



B. What is the wholesaler’s markup percentage on selling price?




C. What is the manufacturer’s markup percentage on cost?