Answer:
Increase in operating income $ 3,600 <u> </u>
Explanation:
The impact on operating income will be done using incremental analysis.
Here we consider only the impact of the proposed change on the income
This is done as follows: $
Contribution before (4,000 × $(500- 320) = 720,000
Contribution after - (98%× 4,000)× (525-320) = <u> 803,600</u>
Increase in contribution 83600
Increase in Fixed expenses <u> ( 80,000)</u>
Increase in operating income <u> 3,600</u>