Miller Company's contribution format income statement for the most recent month is shown below: Sales (37,000 units) Variable expenses Contribution margin Total $ 259,000 Per Unit $7.00 148,000 111,000 4.00 $3.00 Fixed expenses 47,000 Net operating income $ 64,000 Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 18% ? 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 16%? 3. What is the revised net operating income if the selling price increases by $1.20 per unit, fixed expenses increase by $7,000, and the number of units sold decreases by 5%? 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 11%? 1. Net operating income 2. Net operating income 3. Net operating income 4. Net operating income