Miller Company's contribution format income statement for the most recent month is shown below: Total Per Unit Sales (39,000 units) $ 195,000 $ 5.00 Variable expenses 78,000 2.00 Contribution margin 117,000 $ 3.00 Fixed expenses 49.000 Net operating income $ 68,000 Required: (Consider each case independently 1. What is the revised net operating income if unit sales increase by 15%? 2. What is the revised net operating income if the selling price decreases by $1.20 per unit and the number of units sold increases by 20%? 3 What is the revised net operating income if the selling price increases by $1.20 per unit, fixed expenses increase by $9,000, and the number of units sold decreases by 8%? 4 What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 40 cents per unit, and the number of units sold decreases by 13%? $ 85,550 1 Net operating income 2 Net operating income 3. Net operating income 4 Net operating income