For 1 standard lot, the fluctuation point is 10 USD, 1 lot is 1 standard lot is 1 million related base currency. Note that the 1 point here refers to a base point, which is the penultimate number of the citation. The last one is smaller. For example, the euro against the US dollar is now 1.0900 1, fluctuating by 10, that is1.091.