Express Delivery is a rapidly growing delivery service. Last year, 80% of its revenue came from the delivery of mailing 'pouches" and small, standardized delivery boxes (which provides a 20% contribution margin). The other 20% of its revenue came from delivering non-standardized boxes (which provides a 70% contribution margin). With the rapid growth of Internet retail sales, Express believes that there are great opportunities for growth in the delivery of non-standardized boxes. The company has fixed costs of $13,815,000 (a) What is the company's break-even point in total sales dollars? At the break-even point, how much of the company's sales are provided by each type of service? (Use Weighted Average Contribution Margin Ratio rounded to 2 decimal places es. 0.22 and round final answers to decimal places, 2,510) Total break-even sales $ Sale of mail pouches and small boxes $ Sale of non-standard boxes (b) The company's management would like to hold its foxed costs constant but shiftits sales mix so that 60% of its revenue comes from the delivery of non-standardized boxes and the remainder from pouches and small boxes. If this were to occur, what would be the company's break-even sales, and what amount of sales would be provided by each service type? (Use Weighted Average Contribution Margin Ratio rounded to 2 decimal places es 0.22 and round final answers to decimal places, s. 2,510.) Total break-even sales Sale of mail pouches and small boxes $ Sale of non-standardized boxes $