Oslo Company prepared the following contribution format income statement based on a sales volume of 1,000 units (the relevant range of production is 500 units to 1,500 units):
Sales $ 70,000
Variable expenses 38,500
Contribution margin 31,500
Fixed expenses 23,310
Net operating income $ 8,190 4.
Required:
a. If sales increase to 1,001 units, what would be the increase in net operating income?