It is the unit of exchange rate fluctuation. Generally speaking, when the exchange rate fluctuates at the last decimal place, a unit is called a point. For example, the exchange rate of the euro against the US dollar fluctuated from 1.3000 to 1.30 10, with a change of 10. However, some trading platforms quote with 5 decimal places. If it is a platform with 5 decimal places, the change of the fourth decimal place is 65438.