Miller Company's contribution format income statement for the most recent month is shown below. Total $ 228,000 114,000 114,000 48,000 $ 66,000 Per Unit $ 6.00 3.00 $ 3.00 Sales (38,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 15%? 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 3. What is the revised net operating income if the selling price increases by $1.30 per unit, fixed expenses increase by $10,000, and the number of units sold decreases by 3%? 4. What is the revised net operating income if the selling price per unit increases by 10%, variable expenses increase by 20 cents per unit, and the number of units sold decreases by 8%? 15%? 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income