Miller Company's contribution format income statement for the most recent month is shown below: Sales (40,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 240,000 120,000 120,000 47,000 $ 73,000 Per Unit $ 6.00 3.00 $3.00 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 $1.20 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 $1.20 per unit, fixed expenses increase by $8,000, and the number of units sold decreases by 8%? 4. What is the revised net operating income if the selling price per unit increases by 10%, variable expenses increase by 10 cents per unit, and the number of units sold decreases by 10%? 1. Net operating income 2. Net operating income 3 Net operating income 4. Net operating income