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 $ 70,000 38,500 31,500 23,310 Net operating income $ 8,190 5. If sales decline to 900 units, what would be the net operating income? (Round "Per Unit" calculations to 2 decimal places.) Answer is complete but not entirely correct. Net operating income $6,919 6. If the selling price increases by $2 per unit and the sales volume decreases by 100 units, what would be the net operating income? (Round "Per Unit" calculations to 2 decimal places.) Answer is complete but not entirely correct. Net operating income $ 30,690 7. If the variable cost per unit increases by $1, spending on advertising increases by $1,600, and unit sales increase by 220 units, what would be the net operating income? (Round "Per Unit" calculations to 2 decimal places.) Net operating income 8. What is the break-even point in unit sales? (Round intermediate calculations to 2 decimal places.) Break-even point units