For example, for domestic soybeans, the pricing unit is "yuan" and the minimum price change is "1 yuan". If the price rises from 3 120 to 3 150 in a month, it is said that it has risen by 30 points. ....

Another example is Shanghai Copper, the pricing unit is also "yuan", but the minimum price change is "10 yuan". If copper falls from 45,860 to 45,790 in a month, that means it has fallen by 70 points, not 7 points.