• Block average net profit margin for 2013-12-31 was 0%, a 0% decline from 2014-12-31.
• Block average net profit margin for 2014-12-31 was 0%, a 0% decline from 2015-03-31.
• Block average net profit margin for 2015-03-31 was 0%, a 0% decline from 2015-06-30.

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