Answer:
The total contribution margin at 3100 units is closest to $173600 and option d is the correct answer.
Step-by-step explanation:
The contribution margin is the difference between the Sales and the variable expenses. The contribution margin per unit is the total contribution margin divided by the total number of units or contribution margin expressed in per unit terms.
To calculate the total contribution margin, we first need to calculate the per unit contribution margin and multiply it by 3100 units.
Per unit contribution margin = 162400 / 2900 = $56 per unit
Total contribution margin at 3100 units = 56 * 3100 = $173600