Break even analysis Mel's Male Accessories sells wallets Each wallet has an $8 contribution margin; Mel's incurs fixed cost in the amount of $180,000. The selling prices of wallets is $30. The corporate-wide tax rate is 40 percent. a. How much revenue is needed to break even? a. How many wallets does this represent? b. How much revenue is needed to earn a pre-tax profit of $150,000? c. How much revenue is needed to earn an after-tax profit t of $120,000? d. How much revenue is needed to yield a before-tax profit of 12 percent of revenue? d. How much revenue is needed to yield an after-tax profit of 8 percent of revenue? e. if actual sales are 30,000 units what is the margin of safety? Calculate degree of operating leverage using profit given in requirement b