Financial data for Windsor, Inc. for last year appear below: Windsor, Inc. Statements of Financial Position Beginning Balance Ending Balance Assets: Cash $ 266,000 $ 725,370 Accounts receivable 195,000 138,000 Inventory 328,000 285,000 Plant and equipment (net) 475,000 380,000 Investment in Pine Company 281,000 333,000 Land (undeveloped) 194,000 194,000 Total assets $ 1,739,000 $ 2,055,370 Liabilities and owners equity: Accounts payable $ 170,000 $ 226,000 Long-term debt 846,000 846,000 Owners equity 723,000 983,370 Total liabilities and owners equity $ 1,739,000 $ 2,055,370 Windsor, Inc. Income statement Sales $ 2,390,000 Less operating expenses 1,696,900 Net operating income 693,100 Less interest and taxes: Interest expense $ 101,800 Tax expense 207,930 309,730 Net income $ 383,370 The company paid dividends of $123,000 last year. The "Investment in Pine Company" on the statement of financial position represents an investment in the stock of another company. Required: a. Compute the company's margin, turnover, and return on investment for last year. (Round your intermediate calculations and final answers to 2 decimal places. Omit the "%" sign in your response.) Margin % Turnover Return on investment % b. The Board of Directors of Windsor, Inc. has set a minimum required return of 45%. What was the company's residual income last year? (Round your intermediate calculations and final answers to 2 decimal places. Omit the "$" sign in your response.) Residual income $