Miller Company's contribution format income statement for the most recent month is shown below: Total Per Unit $10.00 sales (31,000 units) Variable expenses Contribution margin Fixed expenses Net operating income $ 310,000 217,000 93,000 43,000 $ 50,000 7.00 $ 3.00 Required Consider each case independently) I. What is the revised net operating income if unit sales increase by 20%? 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 15%? 3. What is the revised net operating income if the selling price increases by $1.40 per unit, fixed expenses increase by $6,000, 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 8%