Answer:
D. Operating Income will remain the same.
Step-by-step explanation:
Change in Operating Income = Current Operating Income - Revised Operating Income
Current Operating Income = Sales - Variable Cost - Fixed Cost
Current Sales = $315 X 400 units = $126,000
Variable Cost = $240 X 400 units = $96,000
Fixed Cost = $25,000
Current Operating Income = $126,000 - $96,000 - $25,000 = $5,000
Revised Operating Income = Revised Sales - Revised Variable Cost - Revised Fixed Cost
Revised Sales = $400 X 400 units = $160,000
Revised Variable Costs = $300 X 400 units = $120,000
Revised Fixed Cost = $25,000 + 40% of $25,000 = $25,000 + $10,000
= $35,000
Revised Operating Income = $160,000 - $120,000 - $35,000 = $5,000
Change in operating Income = $5000 - $5000 = $0
Correct option is D. Operating Income will remain the same.