Final answer:
The percent markup on the surfboard is 60%.
Step-by-step explanation:
The formula to calculate the percent markup is:
Percent Markup = ((Selling Price - Cost Price) / Cost Price) * 100%
Using the given values, the cost price of the surfboard is $200 and the selling price is $320. Plugging these values into the formula:
Percent Markup = ((320 - 200) / 200) * 100% = 60%
Therefore, the percent markup on the surfboard is 60%.