Answer:
Total contribution margin when 4,300 units were sold is $43,000
Step-by-step explanation:
The total contribution margin at sales volume of 4,300 units can be computed by first of all calculating the sales revenue at 4,300 units as well as the total variable expenses,the total contribution is simply the sales revenue minus the variable expenses as shown below:
Sales (4,300*92,500/3700) $107,500
Variable expenses(4,300*55,500/3700) ($64,500)
Total contribution margin $43,000
The resulting total contribution is $43,000