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Night Shades Inc. [NSI} manufactures biotech sunglasses. The variable materials cost is $22.50 per unit. a. What is the marginal cost? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.] b. Suppose the company incurs xed costs of $520,000 during a year in which total production is 300,000 units. What are the total costs for the year? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.] c. lithe selling price is $45.50 per unit. what is the cash break-even point? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.} d. If depreciation is $500,000 per year. what is the accounting break-even point? [Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) e. What is the degree of operating leverage at the accounting break-even point? {Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) a. Marginal cost= $ b. Total cost = $ c. Cash break-even point = units d. Accounting break-even point = units e. DOL =