The ROA (Return on Assets) of Tombstone Exploration Corp (TMBXF) is 73.40%.
ROA (Return on Assets) calculates how much net income a company earns relative to its total assets. It reveals how efficiently a business is managing its resources.
| Date | Value |
|---|---|
| 2020-12-31 | 73.40% |
| 2019-12-31 | -132.81% |
| 2018-12-31 | -1400.00% |
| 2017-12-31 | -1860.00% |
| 2016-12-31 | -5850.00% |
| 2015-12-31 | -423.53% |
| 2014-12-31 | -7100.00% |
| 2013-12-31 | -733.33% |
| 2012-12-31 | -1850.00% |
| 2011-12-31 | -145.00% |