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

Total Per Unit

Sales $(24,600$ units$)$ $ $221,400$ $ $9\mathrm{.}00$

Variable expenses $132,8405\mathrm{.}40$

Contribution margin $88,560$ $ $3\mathrm{.}60$

Fixed expenses $51,660$

Net operating income $ $36,900$

Required:

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

Assume the sales volume increases by $4,182$ 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{.}40$ per unit and the number of units sold increases by $17\%?$

What is the revised net operating income if the selling price increases by $$1\mathrm{.}40$ per unit, fixed expenses increase by $$9,000,$ and the number of units sold decreases by $6\%?$

What is the revised net operating income if the selling price per unit increases by $20\%,$ variable expenses increase by $30$ cents per unit, and the number of units sold decreases by $7\%?$