The Gross Margin of Exercise for Life Systems Inc (EFLS) is 79.82%.
Gross Margin represents the percentage of revenue that exceeds the cost of goods sold. It reflects a company's efficiency in producing and selling its products.
| Date | Value | 
|---|---|
| 2012-12-31 | 79.82% | 
| 2011-12-31 | 79.82% | 
| 2010-12-31 | 79.81% | 
| 2009-12-31 | 78.57% | 
| 2008-12-31 | 75.41% | 
| 2007-12-31 | 75.00% |