Information from the financial statements Marble Patch, Inc. for last year are shown below: Statement of Financial Position. Beginning Balance Ending Balance Assets: Cash Accounts receivable Inventory Plant and equipment (net)) Long-Term Investment Land (held for future use) Total assets Liabilities and owners' equity: Accounts payable Long-term debt Stockholders' equity Total liabilities and owners' equity Income Statement $ 303,000 169,000 242,000 481,000 256,000 $ 337,392 217,000 238,000 407,000 308,000 280,000 280,000 $ 1,731,000 $ 171,000 810,000 750,000 $ 1,787,392 $ 188,000 810,000 789,392 $ 1,731,000 $ 1,787,392 Sales Less operating expenses) Net operating income Less interest and taxes: Interest expense Net income. $ 2,220,000 1,687,200 532,800 $ 103,600 191,808 295,408 $ 237,392 Last year, Marble Patch, Inc. paid dividends of $198,000. The "Long-Term Investments" on the corporation's statement of financia position represents an investment in the stock of another company. Required: a. Compute Marble Patch, Inc.'s margin, turnover, and return on investment for last year. b. Marble Patch Inc. desires a minimum required return of 40%. What was the corporation's residual income last year?