EXERCISE Costs L06-1, LO6-4 6-13 Changes in Selling Price, Sales Volume, Variable Cost per Unit, and Total Fixed iller Company's contribution format income statement for the most recent month is shown below: Per Unit $300,000 $15.00 9.00 120,000 $ 6.00 Total Sales (20,000 units) Variable expenses Contribution margin .. . 180,000 70,000 Net operating income ...$ 50,000 Required: (Consider each case independently): 1, what is the revised net operating income if unit sales increase by 15%? e revised net operating income if the selling price decreases by $1.50 per unit and the 3. What is the revised net operating income if the selling price increases by $1.50 per unit, fixed expenses 4 What is the revised net operating income if the selling price per unit increases by 12%, variable number of units sold increases by 25%? increase by $20,000, and the number of units sold decreases by 5%? expenses increase by 60 cents per unit, and the number of units sold decreases by 10%