Total Per Unit Sales (431999 units} 3'; zssjeea $ 6.69 Variable expenses 129JGBB 3.93 Contribution margin 129J669 $ 3-93 Fixed expenses 47JGBB Net operating income $ 82'996 [ Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 15%? 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 21%? 3. What is the revised net operating income if the selling price increases by $1.20 per unit, xed expenses increase by $9,000, 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 20%, variable expenses increase by 30 cents per unit, and the number of units sold decreases by 7%? Net operating income Net operating income Net operating income Net operating income