Miller Companys contribution format income statement for the most recent month is shown below: Total Per Unit Sales (44,000 units) $ 352,000 $ 8.00 Variable expenses 220,000 5.00 Contribution margin 132,000 $ 3.00 Fixed expenses 46,000 Net operating income $ 86,000 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 $1.50 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 $1.50 per unit, fixed expenses increase by $9,000, and the number of units sold decreases by 5%? 4. What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 30 cents per unit, and the number of units sold decreases by 13%?