4 Book Miller Company's contribution format income statement for the most recent month is shown below: Sales (31,000 units) Variable expenses $ 9.00 Total $279,000 186,000 Per Unit Contribution margin 93,000 6,00 $ 3.00 43,000 Net operating income $ 50,000 Required: Fixed expenses Saved (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 13% ? 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 19%? 3. What is the revised net operating income if the selling price increases by $1.40 per unit, fixed expenses increase by $7,000, 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 20%, variable expenses increase by 20 cents per unit, and the number of units sold decreases by 10%? 1 Net operating income 2 Net operating come 3. Net operating income 4. Net operating income