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Fill in the missing amounts. Sheffield Corp. Tamarisk, Inc. Sales revenue $100,000 $ Sales returns and allowances 6,000 Net sales 94,000 116,000 Cost of goods sold 64,860 Gross profit 38,280 Operating expenses 16,920 Net income 17,400 Calculate the profit margin and the gross profit rate for each company. (Round answers to 1 decimal place, e.g. 15.5%.) Sheffield Corp. Tamarisk, Inc. Profit margin Gross profit rate Textbook and Media