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 i Fixed expenses Operating income $ 23,900 13,300 10,600 7,632 $ 2,968 5. If sales decline to 900 units, what would be the operating income? (Do not round intermediate calculations.) Operating income