Miller Companys contribution format income statement for the most recent month is shown below:

Total Per Unit

Sales (38,000 units) $228,000 $ 6.00

Variable expenses 114,000 3.00

Contribution margin 114,000 $ 3.00

Fixed expenses 50,000

Net operating income $ 64,000

1. What is the revised net operating income if unit sales increase by 17%?

2. What is the revised net operating income if the selling price decreases by $1.20 per unit and the number of units sold increased by 22%?

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 decreased by 6%?

4. What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 40 cents per unit, and the number of units sold decreased by 5%?