Miller Company's contribution format income statement for the most recent month is shown below: Total Sales (44,000 units) Variable expenses $ 440,000 Per Unit $10.00 308,000 Contribution margin 132,000 7.00 $ 3.00 Fixed expenses 46,000 Net operating income $ 86,000 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 24%? 3. What is the revised net operating income if the selling price increases by $1.20 per unit, fixed expenses increase by $8,000, and the number of units sold decreases by 5%? 4. What is the revised net operating income if the selling price per unit increases by 10%, variable expenses increase by 20 cents per unit, and the number of units sold decreases by 8%? 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income