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 $ 60,000 39,000 21,000 14,700 $ 6,300 If sales decline to 900 units, what would be the net operating income? at operating income $ 4,230 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 $ 60,000 39,000 21,000 14,700 S 6. 300 7. If the variable cost per unit increases by $1. spending on advertising increases by $1,500, and unit sales increase by 200 units, whe would be the net operating income? Net operating income