Marathon Company makes and sells a single product. The current selling price is $$18$ per unit. Variable expenses are $$12$ per unit, and fixed expenses total $$36,000$ per month.

$($Unless otherwise stated, consider each requirement separately.$)$

Problem $12-25($Static$)$ Part g & h

Management is considering a change in the sales force compensation plan. Currently each of the firm's two salespeople is paid a salary of $$3,000$ per month.

Calculate the monthly operating income $($or loss$)$ that would result from changing the compensation plan to a salary of $$500$ per month, plus a commission of $$1$ per unit, assuming a sales volume of $7,200$ units per month.

Calculate the monthly operating income $($or loss$)$ that would result from changing the compensation plan to a salary of $$500$ per month, plus a commission of $$1$ per unit, assuming a sales volume of $8,000$ units per month.