Required information Problem 1225 (Algo) CVP analysis-what-if questions; breakeven LO 12-7, 12-8, 12-9, 12-10 [The following information applies to the questions displayed below.] Marathon Company makes and sells a single product. The current selling price is $20 per unit. Varlable expenses are $12 per unit, and fixed expenses total $61,800 per month. (Unless otherwise stated, consider each requirement separately.) 9-1. Calculate the monthly operating income (or loss) that would result from changing the compensation plan to a salary of $400 per month, plus a commission of $0.8 per unit, assuming a sales volume of 7.350 units per month. Note. Lo not round intermediate calculations. g-2 Calculate the monthly operating income (or toss) that would result from changing the compensation plan to a salary of $400 per month, plus a commission of \$0.8 per unit, assuming a sales volume of 7,200 units per month. Noteri Do not round intermedlate calculations. Losses should be indicuted by a minus slign. h.1. Assuming that the sales volume of 7,200 units per month achieved in part g could also be achieved by increasing advertising by $1,000 per month instead of changing the sales force compensation plan. What would be the operating income on 1053 Notei Do not round intermediate calculatiots. Losses should be indicated by a ininus sign