Miller Company's contribution format income statement for the most recent month is shown below Sales (42,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 378,000 252.ee 126,000 Per Unit $ 9.00 6.00 $ 3.ee 48,000 $ 78,000 Required: (Consider each case Independently) 1 What is the revised net operating income if unt sales increase by 15%? 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 24%? 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 5%? 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 10%? 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income