Answer:
Option (A) is correct.
Step-by-step explanation:
Contribution Margin:
= Total sales of the product - variable expenses
= $400,000 - $270,000
= $130,000
Avoidable fixed cost = Total fixed cost - Unavoidable fixed cost
= $160,000 - $ 70,000
= $90,000
Net Margin :
= Contribution Margin - Avoidable fixed expense
= $130,000 - $90,000
= $40,000
Hence, if product A is dropped, the company's overall net operating income would decrease by $40,000 per year.