Total Miller Company's contribution format income statement for the most recent month is shown below. Permit Sales (35,000 units) $ 210,000 $ 6.00 Variable expenses 105,000 3.00 Contribution margin 105,000 53.00 Fixed expenses $5.000 met operating income $ 60,000 Required: (Consider each case independently 1. What is the revised net operating income it unit sales increase by 15%? 2. What is the revised net operating income if the selling price decreases by $130 per unit and the number of units sold increases by 17%? 3. What is the revised net operating income. If the selling price increases by $150 per unit, fixed expenses increase by $8.000, and the number of units sold decreases by 4%? 4. What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increme by 30 cents por unit, and the number of units sold decreases by 6%? 1. Not operating income 2. Net operating income 3. Not operating Income 4. Net operating income