Xavier Medical Supply is a retaler of home medical equipment. Last year, Xavier's sales revenues totakod 30,300,000. Total eqpenses ware 52,200,000,08 this amount, epproximately rather than units vier Medical Supply is a retailer of home medical equipment. Last year, Xavier's sales revenues totaled $6,300,000. Total expenses were $2,200,0 260,000 were variable, while the remainder were fixed. Since Xavier's offers thousands of different products, its managers prefer to calculate the her than units. puirement 1. What is Xavier's current operating income? gin by identifying the formula to compute the operating income. Requirements 1. What is Xavier's current operating income? 2. What is Xavier's contribution margin ratio? 3. What is the company's breakeven point in sales dollars? (Hint: The contribution margin ratio calculated in Requirement 2 is already weighted by the company's actual sales mix.) 4. Xavier's top management is deciding whether to embark on a $180,000 advertising campaign. The marketing firm has projected annual sales volume to increase by 10% as a result of this campaign. Assuming that the projections are correct, what effect would this advertising campaign have on the company's annual operating income