http://www.startupnation.com/community/orca/topic/calculating-profit-margin-.htm calculating profit margin Mon, 7 Nov 2011 18:14:42 GMT http://www.startupnation.com/community/orca/topic/calculating-profit-margin-.htm Mon, 7 Nov 2011 18:14:42 GMT http://www.startupnation.com/community/orca/topic/calculating-profit-margin-.htm#779798