Tutorial Exercise The selling price for a fishing boat is $7,672.39. What percent of the sale price is the markup if the cost of the fishing boat was $5,500? Step 1 The markup is to be compared to the selling price of the fishing boat. The amount of markup M in dollars can be found by finding the difference between the selling price SP, the amount a customer pays, and the cost the retaller pays, C. M-SP-C It is given that the selling price of the boat is $7,672.39 and the cost is $5,500. Use these values to find the amount of markup (in $). M-SP-C -$7.672.39-(5 -5 )