Spice Inc.'s unit selling price is $52, the unit variable costs are $32, fixed costs are $113,000, and current sales are 10,600 units. How much will operating income change if sales increase by...

Spice Inc.'s unit selling price is $52, the unit variable costs are $32, fixed costs are $113,000, and current sales are 10,600 units. How much will operating income change if sales increase by 5,800 units?

a.$212,000 decrease

b.$116,000 increase