Miller Company's contribution format income statement for the most recent month is shown below: Total Per Unit Sales (38,000 units) $ 304,000 $ 8.00 Variable expenses 190,000 5.00 Contribution margin 114,000 $ 3.00 Fixed expenses 43,000 Net operating income $ 71,000 Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 12%? 2. What is the revised net operating income if the selling price decreases by $1.30 per unit and the number of units sold increases by 25%? 3. What is the revised net operating income if the selling price increases by $1.30 per unit, fixed expenses increase by $5,000, and the number of units sold decreases by 7%? 4. What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 10 cents per unit, and the number of units sold decreases by 8%?