Ched Required information (The 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 $ 28,eee 13, eee 7,eee 3,780 $ 3,220 5. If sales decline to 900 units, what would be the net operating income? Net operating income