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 incone 23,6ee 13,200 10,400 7,592 2,888 $ Required: if sales declined to 900 units, what would be the net operating Income? (Do not round intermediate calculations.) Not operating incomo