Miller Company's contribution format income statement for the most recent month is shown below: Total Sales (36,000 units) Variable expenses Contribution margin Fixed expenses Net 324,000 216,000 108,000 48,000 $ 60,000 Per Unit $9.00 6.00 $3.00 operating income Required (Consider each case independently) 1, what is the revised net operating income if unit sales increase by 13%? 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 16%? 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 2%? 4, what is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 40 cents per unit, and the number of units sold decreases by 13%? 1. Net operating income 2. Net operating income 3.Net operating income 4. Net operating income