Exercise 5-13 (Algo) Changes in Selling Price, Sales Volume, Variable Cost per Unit, and Total Fixed Costs (LO5-1, LO5-4] Miller Company's contribution format income statement for the most recent month is shown below: Sales (40,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 280,000 160,000 120,000 45,000 $ 75,000 Per Unit $ 7.00 4.00 $ 3.00 es Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 11%? 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 21%? 3. What is the revised net operating income if the selling price increases by $1.10 per unit, fixed expenses increase by $6,000, 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 10%, variable expenses increase by 30 cents per unit, and the number of units sold decreases by 13%? 1. Net operating income 2 Net operating income 3. Net operating income 4. Net operating income