Miller Companys contribution format income statement for the most recent month is shown below: Total Per Unit Sales (33,000 units) $ 231,000 $ 7.00 Variable expenses 132,000 4.00 Contribution margin 99,000 $ 3.00 Fixed expenses 42,000 Net operating income $ 57,000

Required: (Consider each case independently):

1. What is the revised net operating income if unit sales increase by 12%?

2. What is the revised net operating income if the selling price decreases by $1.10 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 $1.10 per unit, fixed expenses increase by $8,000, and the number of units sold decreases by 8%?

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 11%?

Can you please provide an explanation of where you get your numbers and what we should multiple or add? Thank you!