Exercise 6-13 Changes in Selling Price, Sales Volume, Variable Cost per Unit, and Total Fixed Costs LO6-1, LO6-4] iller Company 's contribution format income statement for the most recent month is shown below Sales (38,800 units) Variable expenses Contribution margin Fixed expenses Net operating income 384,000 8.80 190,000 5.ee 114,0e0 3.0e 43,0ee $ 71,000 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 $1.10 per unit and the number of units sold increases by 24%? 3. What is the revised net operating income if the selling price increases by $1.10 per unit, fixed expenses increase by $9,000, 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 10%, variable expenses increase by 40 cents per unit, and the number of units sold decreases by 7%