Miller Company$$s contribution format income statement for the most recent month is shown below:

Total Per Unit

Sales $(28,800$ units$)$ $ $172,800$ $ $6\mathrm{.}00$

Variable expenses $103,6803\mathrm{.}60$

Contribution margin $69,120$ $ $2\mathrm{.}40$

Fixed expenses $40,320$

Net operating income $ $28,800$

Required:

$($Consider each of the four requirements independently$)$:

Assume the sales volume increases by $5,184$ units:

What is the revised net operating income?

What is the percent increase in unit sales?

Using the most recent month$$s degree of operating leverage, what is the percent increase in net operating income?

What is the revised net operating income if the selling price decreases by $$1\mathrm{.}30$ per unit and the number of units sold increases by $22\%?$

What is the revised net operating income if the selling price increases by $$1\mathrm{.}30$ per unit, fixed expenses increase by $$9,000,$ and the number of units sold decreases by $7\%?$

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 decreases by $11\%?$