Miller Company's contribution format income statement for the most recent month is shown below. Sales (20,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $300,000 180, eee 128,eee 7e, eee $ 50,00 Per Unit $15.ee 9.ee $ 6.00 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 $150 per unit and the number of units sold increases by 25%? 3. What is the revised net operating income if the selling price increases by $1.50 per unit, fixed expenses increase by $20,000, 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 12%, variable expenses increase by 60 cents per unit, and the number of units sold decreases by 10%? 1. Net operating income 2. Not operating income 3. Net operating income 4. Net operating income