Miller Companys contribution format income statement for the most recent month is shown below: Total Per Unit Sales (44,000 units) $ 396,000 $ 9.00 Variable expenses 264,000 6.00 Contribution margin 132,000 $ 3.00 Fixed expenses 42,000 Net operating income $ 90,000 Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 17%? 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 24%? 3. What is the revised net operating income if the selling price increases by $1.40 per unit, fixed expenses increase by $8,000, 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 10%, variable expenses increase by 20 cents per unit, and the number of units sold decreases by 6%?