Answer:
The answer is $210,750.
Explanation:
To calculate the contribution margin, we need to find the total income from the sales and then subtract all costs. If Mr. Schrute sold 300 generators for $770 each, then the total sales will be $231,000. The 5% commission from $231,000 will be $11,550. The total costs along with the rent and salary is $20,250. So the contribution margin in the contribution margin income statement will be $210,750.
I hope this answer helps.