CVP; multiproduct Mel's Accessories sells wallets and money clips. Historically, the firm's sales have averaged three wallets for every money clip. Each wallet has an $8 contribution margin, and each money clip has a $6 contribution margin. Mel's incurs fixed cost in the amount of $468,000. The selling prices of wallets and money clips, respectively, are $30 and $15. The corporate-wide tax rate is 40 percent. a. How much revenue is needed to break even? How many wallets and money clips does this represent? wallets money clips b. How much revenue is needed to earn a pre-tax profit of $390,000 ? Note: Do not round until you determine the number of units of each product; round number of units to the next highest whole unit in your calculations. c. How much revenue is needed to earn an after-tax profit of $390,000? Note: Do not round until you determine the number of units of each product; round number of units to the next highest whole unit in your calculations. d. If Mel's earns the revenue determined in (b) but does so by selling five wallets for every two money clips, what would be the pre-tax profit (or loss)? Note: Do not round until you determine the number of units of each product; round number of units to the next highest whole unit in your calculations. $x