Answer:
Correct answer is B, $4,300
Step-by-step explanation:
An operating income of $4,300 for this month is computed by deducting variable cost from sales to get the contribution margin. Afterwhich, we deduct the fixed cost from the contribution margin to get the operating income. To illustrate further, see computation below:
Sales (4,000 x $6) $24,000
Less: variable cost (4,000 x 3) $12,000
Contribution margin $12,000
Less: fixed cost $ 7,700
Operating income $ 4,300