Sales (45,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $360,000 225,000 135,000 40,000 $ 95,000 Per Unit $8.00 5.00 $ 3.00 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 $1.10 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 $1.10 per unit, fixed expenses increase by $8,000, and the number of units sold decreases by 7%? 4. What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 10 cents per unit, and the number of units sold decreases by 12%? 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income