Convert from drum [metric, petroleum] to cubic yard

Unit Definition (drum [metric, petroleum])
The drum [metric, petroleum] is a unit of volume sometimes used in the oil trade. In the metric world, drums of 200 liters, 205 liters, and 208 liters are in use as substitutes for the traditional size.

Unit Definition (cubic yard)
The cubic yard is a traditional unit of volume in English speaking countries. One cubic yard equals 27 ft³, 46 656 in³, 0.764 555 m³, or 764.555 liters. A cubic yard holds about 201.97 U.S. liquid gallons or about 168.20 British Imperial gallons.