Answer: $21,080
Step-by-step explanation:
First calculate the contribution margin per unit
= Sales - Variable costs
= Selling price - Raw materials - Direct labor cost - Manufacturing overhead - Variable selling and administrative expense
= 114 - (6 * 4) - (2.4 * 24) - (9 * 2.4) - 1.60
= $9.20
The Contribution margin is:
= 9.20 * 9,900 units
= $91,080
Net operating income = Contribution margin - fixed cost
= 91,080 - 70,000
= $21,080