Sales (38,000 units) Variable expenses Contribution margin Fixed expenses Total $ 380,000 266,000 Per Unit $10.00 7.00 114,000 $ 3.00 40,000 Net operating income $ 74,000 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 $1.50 per unit and the number of units sold increases by 19%? 3. What is the revised net operating income if the selling price increases by $1.50 per unit, fixed expenses increase by $6,000, and the number of units sold decreases by 4%? 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 11% ? 1. Net operating income 2. Net operating income 3 Net operating income: 4. Net operating income