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 85,000 59, 500 25,500 20, 400 S 5,100 5. If sales decline to 900 units, what would be the net operating income? Net operating income