Answer:
D. 76.6 %
Explanation:
Contribution Margin Ratio = Contribution / Sales × 100
First Calculate the Contribution
Contribution = Sales - Variable Costs
= (60,000 units × $ 12.40) - ($110,000+$30,000+$34,000)
= $744,000 - $174,000
= $570,000
Then Calculate Contribution Margin Ratio
Contribution Margin Ratio = $570,000 / $744,000 × 100
= 76.61290
= 76.6 % ( 1 decimal)