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Miller Company's contribution format income statement for the most recent month is shown below: Sales (30,000 units) Variable expenses Contribution margin Fixed expenses Net operating income Total $ 300,000 210,000 90,000 42.000 $ 48,000 Per Unit $ 10.00 7.00 $ 3.00 Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 19%? 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 3. What is the revised net operating income if the selling price increases by $1.30 per unit, fixed expenses increase by $8,000, and the number of units sold decreases by 3%? 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 14%? 18%? 1. Net operating incomo 2. Net operating income 3. Net operating income 4. Net operating income