Miller Company's contribution format income statement for the most recent month is shown below: Sales (35,000 units) Variable expenses Per Unit $ 9.00 6.00 Total $315,000 210,000 Contribution margin 105,000 $ 3.00 Fixed expenses 44,000 Net operating income $ 61,000 Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 18% ? 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 23%? 3. What is the revised net operating income if the selling price increases by $1.20 per unit, fixed expenses increase by $10,000, and the number of units sold decreases by 2%? 4. What is the revised net operating income if the selling price per unit increases by 10%, variable expenses increase by 30 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