ENERCISE 4-12 Using a Contribution Format Income Statement [@ LO1, L.O4] Kelly Company's most recent contribution format income statement is shown below: Requinod: 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 30%. 2. The selling price decreases by $1 per unit, and the number of units sold increases by 20%. 3. The selling price increases by $1 per unit, fixed expenses increase by $20,000, and the number of units sold decreases by 10%. 4. Variable expenses inerease by 60 cents per unit, the selling price increases by 15%, and the number of units sold decreases by 15%