Answer:
Contribution Margin is $200,925.
Step-by-step explanation:
Contribution margin is calculated by taking Sales Revenue and deducting all the Variables costs from it. In this case, we have two costs that are variable: $.95 of Manufacturing Cost and 5% of Commission that is Paid to Sales Staff.
Workings
Sales (4 * 70,500) $282,000
Cost (.95 * 70,500) (66,975)
Sales Commission (.05 * 282,000) (14,100)
Contribution Margin $200,925