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

	Total			Per Unit
Sales (40,000 units)	$	360,000		$	9.00
Variable expenses		240,000			6.00
Contribution margin		120,000		$	3.00
Fixed expenses		46,000
Net operating income	$	74,000

Required:

(Consider each case independently):

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 increases by 22%?

3. What is the revised net operating income if the selling price increases by $1.20 per unit, fixed expenses increase by $5,000, 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 10%, variable expenses increase by 10 cents per unit, and the number of units sold decreases by 13%?