Dorcan corporation manufactures and sells t-shirts imprinted with college names and slogans. last year, the shirts sold for $8.00 each, and the variable cost to manufacture them was $3.75 per unit. the company needed to sell 20,000 shirts to break-even. the after tax net income last year was $5,100. donnelly's expectations for the coming year include the following: (cma adapted) the sales price of the t-shirts will be $10. variable cost to manufacture will increase by one-third. fixed costs will increase by 10%. the income tax rate of 40% will be unchanged. based on a $10 selling price per unit and if dorcan corporation wishes to earn $48,972 in after tax net income for the coming year, the company's sales volume in dollars must be: multiple choice