Miller Company's contribution format income statement for the most recent month is shown below: Sales (31,000 units) Total $ 217,000 Per Unit $ 7.00 Variable expenses Contribution margin Fixed expenses 124,000 93,000 4.00 $ 3.00 49,000 $ 44,000 Net operating income Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 19% ? 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 16% ? 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 6%? 4. What is the revised net operating income if the selling price per unit increases by 10%, variable expenses increase by 30 cents per unit, and the number of units sold decreases by 6%? 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income