QS 5-18 Markups LO6 Assume it costs a manufacturer $80 to produce a pair of sunglasses. The manufacturer sells the sunglasses to a fashion designer for $100. The fashion designer puts its brand name on the sunglasses and sells them to optical retail stores for $160. The optical retail stores then sell the sunglasses to the end customers at $320. Required 1. What is the markup percentage between the following: a. Manufacturer and fashion designer? b. Fashion designer and optical retail store? c. Optical retail store and end customer? 2. What is the total markup from the manufacturer to the end customer