please help with this question

Financial data for Joel de Paris, Inc., for last year follow: Joel de Paris, Inc. Balance Sheet Beginning Ending Balance Balance Assets Cash $ 134, 000 $ 126, 000 Accounts receivable 336, 000 488, 000 Inventory 576, 000 475, 000 Plant and equipment, net 854, 000 Investment in Buisson, S.A. 94, 000 851, 000 432, 000 Land (undeveloped 254, 000 252, 000 Total assets $2, 548, 000 $2, 624, 000 Liabilities and Stockholders' Equity Accounts payable $ 388, 000 $ 330, 000 Long-term debt 1, 007,000 1, 007, 000 Stockholders' equity 1, 153, 000 1, 287, 000 Total liabilities and stockholders' equity $2, 548, 000 $2, 624, 000 Joel de Paris, Inc. Income Statement Sales $5, 376, 000 Operating expenses 4, 623, 360 Net operating 752, 640 income Interest and taxes : Interest expense $116, 000 Tax expense 210, 000 326, 000 Net income $ 426, 640 The company paid dividends of $292,640 last year. The "Investment in Buisson, S.A.," on the balance sheet represents an investment in the stock of another company. The company's minimum required rate of return of 15%. Required: . Compute the company's average operating assets for last year. 2. Compute the company's margin, turnover, and return on investment (ROI) for last year. (Round "Margin", "Turnover" and "ROI" to 2 decimal places.) 3. What was the company's residual income last year? 1. Average operating assets 2. Margin % Turnover ROI % 3. Residual income