Missoula Inc. reported the following selected financial statement data: Dec 31, 2020 Dec 31, 2021 Cash $ 32,000 $ 35,000 Accounts receivable (net) 50,000 56,000 Inventory 70,000 74,000 Plant assets (net) 212,000 222,000 Total assets 411,000 399,000 Liabilities 147,000 147,000 Shareholders' equity 264,000 252,000 Net sales 342,000 404,000 Cost of goods sold 222,000 284,000 Net income 22,000 26,260 Required: Compute the profit margin on sales for 2021. (