Exchange rate is the basis and standard for exchange between different currencies. Exchange rate refers to the exchange rate and exchange rate between the currencies of two countries. RMB exchange rate is the price and exchange rate between RMB and foreign currency. The exchange rate of RMB represents the external value of RMB, which is uniformly formulated and adjusted by the State Administration of Foreign Exchange on the basis of the principle of independence and unification, with reference to the price comparison level at home and abroad and the exchange rate fluctuation in the international financial market, and announced to the domestic and foreign countries on a daily basis. As the exchange rate for all foreign exchange receipts and payments settlement, it is the official exchange rate, and there is no market exchange rate, and its pricing method adopts the internationally accepted direct quotation. That is, fixed units (such as 100, 10000, 100000, etc.) are converted into a certain amount of RMB. ) to express the exchange rate of RMB against foreign currency. The amount of foreign currency in a fixed unit depends on the value of each foreign currency. Except that the exchange rate of RMB against Belgian franc and Italian lira is ten thousand (10000) units and against Japanese yen is one hundred thousand (100000) units, the exchange rates of other foreign currencies are all one hundred (10000) units.