The Gross Margin of Petrotech Oil & Gas Inc (PTOG) is 100.00%.
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 | 100.00% |
| 2011-12-31 | 91.53% |
| 2010-12-31 | 54.24% |