You are given the following information for Smashville, Inc.

Cost of goods sold:	$	175,000
Investment income:	$	2,800
Net sales:	$	237,000
Operating expense:	$	42,000
Interest expense:	$	7,400
Dividends:	$	10,000
Tax rate:		30	%

Current liabilities:	$	18,000
Cash:	$	21,000
Long-term debt:	$	10,000
Other assets:	$	36,000
Fixed assets:	$	89,000
Other liabilities:	$	5,000
Investments:	$	12,000
Operating assets:	$	24,000

Calculate the gross margin, the operating margin, return on assets, and return on equity. (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places. Omit the "%" sign in your response.)

Gross margin	%
Operating margin	%
Return on assets	%
Return on equity	%