The percent markup of the sweatshirt is 60%
Here, we want to calculate the percenatge of profit made by the store
Mathematically;
[tex]\text{Percentage markup = }\frac{(sales\text{ price-cost price)}}{\cos t\text{ price}}\text{ }\times\text{ 100\%}[/tex]From the question, we can deduce the following;
cost price is the price the store bought the sweatshirt = $12
sales price is the amount in which they sold the sweatshirt = $19.20
Thus, we proceed to substitute these values into the markup equation above;
[tex]\begin{gathered} \text{Perecentage markup = }\frac{(19.20-12)}{12}\text{ }\times\text{ 100\%} \\ \\ \text{Percentage markup = }\frac{7.20}{12}\text{ }\times\text{ 100\%} \\ \\ =\text{ 60\%} \end{gathered}[/tex]