F8inancial data for Windsor, Inc. for last year appear below:

Windsor, Inc. Statements of Financial Position
	Beginning Balance		Ending Balance
Assets:
Cash	$	331,000	$	505,256
Accounts receivable		169,000		185,000
Inventory		263,000		228,000
Plant and equipment (net)		451,000		388,000
Investment in Pine Company		266,000		288,000
Land (undeveloped)		365,000		365,000
Total assets	$	1,845,000	$	1,959,256
Liabilities and owners equity:
Accounts payable	$	190,000	$	189,000
Long-term debt		868,000		868,000
Owners equity		787,000		902,256
Total liabilities and owners equity	$	1,845,000	$	1,959,256

Windsor, Inc. Income statement
Sales			$	2,080,000
Less operating expenses				1,518,400
Net operating income				561,600
Less interest and taxes:
Interest expense	$	100,400
Tax expense		190,944		291,344
Net income			$	270,256

The company paid dividends of $155,000 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 40%. 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

$