Miller Company's contribution format income statement for the most recent month is shown below: Total Sales (36,000 units) Variable expenses Contribution margin Fixed expenses Net operating income $216,000 108,000 108,000 42,000 $ 66,000 Per Unit $6.00 3.00 $3.00 Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 16%? 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 21%? 3. What is the revised net operating income if the selling price increases by $1.40 per unit, fixed expenses increase by $9,000, and the number of units sold decreases by 4%? 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 11%? 4 Net operating income . Net operating income Net operating income Net operating income