solution required

Dorcan Corporation manufactures and sells T-shirts imprinted with college names and slogans. Last year, the shirts sold for $7.50 each, and the variable cost to manufacture them was $2.25 per unit. The company needed to sell 20,000 shirts to break-even. The after tax net income last year was $5,040. 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 $37,800 in after tax net income for the coming year, the company's sales volume in dollars must be