Financial data for Windsor, Inc. for last year appear below: Windsor, Inc Statements of Financial Position Beginning Balance Ending Balance Assets Cash Accounts receivable Inventory Plant and equipment (net) Investment in Pine Company Land (undeveloped) Total assets $ 250,000 S 260,000 135,000 205,000 380,000 250,000 430000 120,000 230,000 420,000 220,000 430,000 Liabilities and owners' equity: Accounts payable Long-term debt. Owners equity Total liabilities and owners' equity $ 160,000 800,000 S 140,000 800,000 720,000 Windsor, Inc Income Statement Sales $1,750,000 Less operating expenses. 280,000 Net operating income. Less interest and taxes Interest expense ax expense Net income $96,000 0000166,000 S 114000 The company paid dividends of $104,000 last year. The "Investment in Pine Company" on the statement of financial position represents an investment in the stock of another compan Required: a. Compute the company's margin, turnover, and return on investment for last year. b, The Board of Directors of Windsor, Inc. has set a minimum required return of 25%, what was the company's residual income last year