Miller Company's contribution format income statement for the most recent month is shown below: Sales (43,800 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 301,088 172,880 129,000 48,000 $ 81,000 Per Unit $ 7.00 4.89 $ 3.80 Required: (Consider each case independently: 1. What is the revised net operating income if unit sales increase by 16%? 2. What is the revised net operating income if the selling price decreases by $1.20 per unit and the number of units sold increases by 21962 3. What is the revised net operating income if the selling price increases by $1.20 per unit, fixed expenses increase by $5.000, and the number of units sold decreases by 6%? 4. What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 30 cents per unit, and the number of units sold decreases by 11