Chart of Global Price of Soybeans per Metric Ton from 1990 to Present
The International Monetary Fund Primary Commodity Prices states:
Value represents the benchmark prices, which are representative of the global market. They are determined by the largest exporter of a given commodity. Prices are period averages in nominal U.S. dollars.
A metric ton is equal to 1,000 kilograms or approximately 2,204 pounds, while a U.S ton is equal to 2,000 pounds.