Answer:
59.375%
Explanation:
Mathematically, the contribution margin ratio can be solved using the following formula;
(Sales-variable cost)/sales * 100%
According to the question, the sales is $8 per picture, while the variable cost is $3.25
The contribution margin ratio is thus:
(8-3.25)/8 * 100/1
4.75/8 * 100% = 59.375%