Answer:
Increase in Operating Income of $102,500.
Step-by-step explanation:
Consider the incremental effects as follows
Sales (2,300 × $75) $172,500
Less Variable Costs ( 2,300 × $25) ($57,500)
Contribution $115,000
Less Fixed Costs ($12,500)
Change in Operating Income $102,500
Therefore,
The effect is an Increase in Operating Income of $102,500.