Answer:
the percent markup is 25%.
Explanation:
To find the percent markup, we need to know the difference between the cost price (what the store paid for the shirts) and the selling price (what the store is selling them for), and then divide that difference by the cost price and multiply by 100 to get the percentage.
Cost price = $7200 / 300 = $24
Selling price = $30
Profit = $30 - $24 = $6
Markup = (Profit / Cost price) * 100 = (6/24) * 100 = 25%
So the percent markup is 25%.