A $2.00 increase in a product's variable expense per unit accompanied by a $2.00 increase in its selling price per unit will: A) decrease the degree of operating leverage. B) decrease the contribution margin. C) have no effect on the break-even volume. D) have no effect on the contribution margin ratio.

A) decrease the degree of operating leverage

Explanation:

The contribution margin is

sales - variable:

(sales + 2) - (variable + 2) = sales - variable

no change

so B is FALSE

as the contribution margin ratio is:

(sales - variable) / sales

this increase will impact the contribution margin ratio.

(sales + 2 - (variable + 2)) / (sales + 2)

(sales - variable) / (sales + 2)

the CMR will decrease.

so D is FALSE

the break-even on sales will increase as the CMR decreases

more units are needed to fullfil the fixed cost

so C is FALSE

A) decrease the degree of operating leverage

ΔEBIT / Δrevenue

sales increase and the variable cost increases

a change in the sales revenue will not be as efficient as it was before the degree of leverage will decrease.