6. ABC's most recent contribution format income statement is shown below: Total Sales (10,000 units) $100,000 Variable expenses 70,000 Contribution margin 30.000 Fixed expenses 20,000 Net operating income $10,000 Per Unit $10.00 7.00 $ 3.00 Required: Prepare a new contribution format income statement under each of the following conditions (consider each case independently): 1. The number of units sold increases by 20% 2. The selling price decreases by $1 per unit, and the member of units sold increases by 10% 3. The selling price increases by $2 per unit, fixed ases increase by $10,000, and the mumber of units sold decreases by 10% 4. Variable expenses increase by $1 per unit, the selling price increases by 30% and the number of units sold decreases by 30%