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 Variable expenses Contribution margin Fixed expenses Net operating income $ 70,000 38,500 31,500 23,310 $ 8,190 Required: 4. If sales increase to 1,001 units, what would be the increase in net operating income? Note: Round your answer to 2 decimal places. Increase in net operating income