• Paychex average net profit margin for 2011-08-31 was 0%, a 0% decline from 2011-11-30.
• Paychex average net profit margin for 2011-11-30 was 0%, a 0% decline from 2012-02-29.
• Paychex average net profit margin for 2012-02-29 was 0%, a 0% decline from 2012-05-31.

Net profit margin can be defined as net Income as a portion of total sales revenue.