Using the information provided, calculate this firm's ROA, ROE, gross profit margin, and quick ratio. If this firm's WACC is 6.6 percent and the average firm in its industry has an ROA of 8 percent, is this firm earning above or below normal economic performance and above or below average accounting performance? Net sales 6, 134 Cost of goods sold (4, 438) Selling, general administrative expenses (996) Other current assets 0 Total current assets 3, 927 Gross properties, plant, equipment 729 Retained earnings 0 Common stock 3, 104 Other liabilities 0 Total liabilities and equity 5, 161 Operating cash 3, 226 Accounts receivable 681 Inventories 20 Long-term debt 300 Deferred income taxes 208 Preferred stock 0 Provision for taxes (75) Other income 245 Net income 554 Net other operating assets 916 Total assets 5, 161 Net current liabilities 1, 549 Other expenses (341) Interest income 72 Interest expense (47) Accumulated depreciation (411) Book value of fixed assets 318 Goodwill 0