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Dulaney's Stores has posted the following yearly earnings and expenses. Click the icon to view the yearly data. a. Dulaney's current profit margin is %. (Enter your response rounded to one decimal place.) Dulaney's current yearly ROA is %. (Enter your response rounded to one decimal place.) b. Suppose COGS and merchandise inventory were each cut by 20%. The new pretax profit margin is %. (Enter your response rounded to one decimal place.) The new ROA is %. (Enter your response rounded to one decimal place.) c. Based on the current profit margin in part a., Dulaney would have to generate $ in additional sales in order to have the same effect pretax earnings as a 20% decrease in merchandise costs. (Enter your response rounded to the nearest dollar.) 0 More Info n Earnings and Expenses (Year Ending January 2012) Sales $65,000,000 Cost of goods sold (COGS) $45,000,000 Pretax earnings $7,280,000 Selected Balance Sheet Items Merchandise Inventory $3,640,000 Total assets $10,000,000 Done