Miller Company's contribution format income statement for the most recent month is shown below: Total Per Unit Sales (45,000 units) $225,000 $5.00 Variable expenses 90,000 2.00 Contribution margin 135,000 $ 3.80 Fixed expenses 48,000 Net operating income $ 87,000 Required: (Consider each case Independently): 1. What is the revised net operating income if unit sales increase by 13%? 2. What is the revised net operating income if the selling price decreases by $1.50 per unit and the number of units sold increases by 15%? 3. What is the revised net operating income if the selling price increases by $150 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 20%, variable expenses increase by 30 cents per unit, and the number of units sold decreases by 9%? 1 Net operating income 2 Net operating income 3. Net operating income 4. Not operating income