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The Greenback Store's cost structure is dominated by variable costs with a contribution margin ratio of 0.40 and fixed costs of $100,800. Every dollar of sales contributes 40 cents toward fixed costs and profit. The cost structure of a competitor, One-Mart, is dominated by fixed costs with a higher contribution margin ratio of 0.70 and fixed costs of $244,800. Every dollar of sales contributes 70 cents toward fixed costs and profit. Both companies have sales of $480,000 for the month. Required: a. Compare the two companies' cost structures, b. Suppose that both companies experience a 10 percent increase in sales volume. By how much would each company's profits increase? Complete this question by entering your answers in the tabs below. Required A Required B Suppose that both companles experience a 10 percent increase in sales volume. By how much would each company's profits increase? Greenback Store's profits increase by One-Mart's profits increase by