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): Required: 7. If the varlable cost per unit increases by $1, spending on advertising increases by $1,600, and unit sales increase by 220 units, would be the net operating income? Note: Round "Per Unit" calculations to 2 decimal places. Required information [he 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): Required: 8. What is the break-even point in unit sales? Note: Round intermediate calculations to 2 decimal places. 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): Required: 9. What is the break-even point in dollar sales? 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): Required: 10. How many units must be sold to achleve a target profit of $18,900 ? Note: Round intermediate calculations to 2 decimal places