Based on the selling price and the variable costs, the new contribution margin ratio would be 35%.
First find the new contribution margin which is:
= Selling price - Variable cost
Solving gives:
= 200 - ( (60% x 200) + 10)
= 200 - (120 +10)
= $70
The contribution margin ratio will be:
= Contribution margin / Selling price
= 70/ 200
= 35%
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