The Garry Corporation's most recent contribution format income statement is shown below: Total Per unit Sales (15,000 units) $225,000 $15 Variable expenses 135,000 9 Contribution margin 90,000 $ 6 Fixed expenses 35,000 Net operating income $ 55,000 Required: Prepare a new contribution format income statement under each of the following conditions (consider each case independently): a. The sales volume increases by 10% and the price decreases by $0.50 per unit. b. The selling price decreases $1.00 per unit, fixed expenses increase by $15,000, and the sales volume decreases by 5%. c. The selling price increases by 25%, variable expense increases by $0.75 per unit, and the sales volume decreases by 15%. d. The selling price increases by $1.50 per unit, variable cost increases by $1.00 per unit, fixed expenses decrease by $15,000, and sales volume decreases by 12%.