Miller Company's contribution format income statement for the most recent month is shown below: Sales (33,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 231,000 132,000 99,000 42,000 $ 57,000 Per Unit $7.00 4.00 $3.00 Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 14%? 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 17%? 3. What is the revised net operating income if the selling price increases by $1.30 per nit, fixed expenses increase by $10,000, 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 40 cents per unit, and the number of units sold decreases by 5%? $ 70,860 30,549 $ 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income