IThe following information applies to the questions displayed below. 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 $24,800 13,600 11,200 7728 S 3,472 Required information 5. If sales decline to 900 units, what would be the net operating income? (Do not round intermediate calculations.) et operating income