Required information Problem 12-25 (Static) CVP analysis-what-if questions; breakeven LO 12-7, 12-8, 12-9, 12-10 [The following information applles to the questions displayed below.] Marathon Company makes and sells a single product. The current selling price is $18 per unit. Varlable 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 d d. Calculate monthly operating income (or loss) if a $2 per unit reduction in selling price results in a volume increase to 12,000 units per month