Exercise 6-13 (Algo) Changes in Selling Price, Sales Volume, Variable Cost per Unit, and Total Fixed Costs (LO6-1, LO6-4] Miller Company's contribution format income statement for the most recent month is shown below: Sales (31,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 310,000 217,000 93,000 42,000 $ 51,000 Per Unit $ 10.00 7.00 $ 3.00 Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 19%? 2. What is the revised net operating income if the selling price decreases by $1.40 per unit and the number of units sold increases by 18%? 3. What is the revised net operating income if the selling price increases by $1.40 per unit, fixed expenses increase by $10,000, and the number of units sold decreases by 3%? 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 14%? 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income