Answer:
70.38%
Explanation:
Dollar Markup = Selling price - Cost price
Dollar Markup = $52.00 - $15.40
Dollar Markup = $36.60
% markup on selling price = Dollar Markup / Selling price * 100
% markup on selling price = $36.60/$52.00 * 100
% markup on selling price = 0.703846154 * 100
% markup on selling price = 70.38%