Miller Company's contribution format income statement for the most recent month is shown below: Sales (38,000 units) Variable expenses Contribution margin Fixed expenses Net operating income $ 190,000 Total 76,000 114,000 Per Unit $ 5.00 2.00 $ 3.00 42,000 $ 72,000 Required: (Consider each case independently): 1. 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 21%? 3. What is the revised net operating income if the selling price increases by $1.40 per unit, fixed expenses increase by $7,000, 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 40 cents per unit, and the number of units sold decreases by 14% ? 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income