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 $ 25,400 Variable expenses 13,800 Contribution margin 11,600 Fixed expenses 7,772 Net operating income $ 3,828 .If the selling price increases by $1.70 per unit and the sales volume decreases by 100 units, what would be the net operating income (Do not round intermediate calculations.)