Minimum variation multiplied by transaction unit multiplied by transaction quantity. For example, gold futures, 0.01*1000 *1=10. For every 0.0 1 change in gold futures, the profit will be 10 yuan. 0.0 1 is the variation. 1 000g is the unit of gold futures trading (1 000g is1lot),1is the number of lots-this is the minimum purchase amount of gold. Similarly, for soybean futures, 1 * 1 = 1.