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 $ 24,200 Variable expenses 13,400 Contribution margin 10,800 Fixed expenses 7,668 Net operating income $ 3,132 Required: If sales declined to 900 units, what would be the net operating income? (Do not round intermediate calculations.)