Maller Company's contribution format income statement for the most recent month is shown below: Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 20% ? 2. What is the revised net operating income if the selling price decreases by $1.50 per unit and the number of units sold increases by 16% 3. What is the revised net operating income if the selling ptice increases by $150 per unit, fived 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 10% variable expenses increase by 20 cents per unit, and the number of units sold decreases by 13%