Miller Company's contribution format income statement for the most recent month is shown below Total Per Unit $ 8.00 5.00 $3.00 Sales (35,000 units) Variable expenses Contribution margin Fixed expenses Net operating income $ 280,000 175,000 105,000 42,000 $ 63,000 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 $1.30 per unit and the number of units sold increases by 18%? 3. What is the revised net operating income if the selling price increases by $1.30 per unit, fixed expenses increase by $5,000, 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 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