Final answer:
To calculate the new net operating income after changes in selling price and sales volume, we need to calculate the new sales revenue, variable costs, and contribution margin. After making these calculations, the new net operating income is $960.
Step-by-step explanation:
To calculate the net operating income after the changes in selling price and sales volume, we need to adjust the income statement based on the given information. Given that the selling price increases by $2 per unit and the sales volume decreases by 100 units, we can calculate the new sales revenue, variable costs, and contribution margin.
New sales revenue = (Sales volume - 100) * (Selling price + $2) = 900 * ($80 + $2) = $74,800
New variable costs = Var C = $52,000
New contribution margin = New sales revenue - New variable costs = $74,800 - $52,000 = $22,800
Finally, to calculate the new net operating income, we subtract the fixed costs from the new contribution margin. New net operating income = New contribution margin - Fixed costs = $22,800 - $21,840 = $960