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): If the variable cost per unit increases by $1, spending on advertising increases by $1,600, and unit sales increase by 20 units, what would be the net operating income? (Round "Per Unit" calculations to 2 decimal places.)