Answer:
$15,000 increase
Explanation:
Calculation of How much will operating income change if sales increase by $60,000
$15,000 increase
In a situation where the variable costs is the 75% of sales, this means 75% of $60,000 will gives $45,000.
Hence,The change in sales minus variable costs will give us the change in operating income.
Change in operating income =$60,000 - $45,000 = $15,000
Therefore 15,000 increase is the amount that the operating income will change if sales increase by $60,000
