You can change it, but you can only go to the counter. The bank is a service financial institution, which itself has the function of redeeming the currency
extension information currency (Money) is the product of commodity exchange. It is a kind of commodity for general equivalent. Commonly known as money. Currency (Currency, CCY) is a tool for measured prices, the medium of buying goods, and means of preserving wealth. It is the contract of the owner of the property and the market for exchange rights. It is essentially an agreement between the owner. Including currency, bank vouchers, etc. in circulation. The currency issuance should follow this calculation formula: m: the amount of currency (currency volume) required in circulation p: The average price of the product q: The number of products v: The speed of currency circulation (calculated based on the number of currency turnover) If according to the usual currencyist interpretation, when the actual currency volume is greater than the required amount, it will cause the currency depreciation and form inflation. Conversely, it will lead to deflation. usually only uses the only currency in each country and is issued and controlled by the central bank. However, there are exceptions, that is, multiple countries can use the same currency. For example, the euro universal in EU countries, the francs in West Africa’s economic community, and the Latin currency alliance in the 19th century. Equal money. The country can choose the currency of other countries as the legal circulation currency. For example, Panama chose US dollars as a legal currency. Currency in different countries may also use the same names, such as before using the euro in France and Belgium, they and Switzerland’s currencies are called Fran. The currencies in some countries have no auxiliary currency, or although there are auxiliary currencies, but because the currency value is too small, it is only theoretical converter unit without issuing actual currencies, such as yen and won. The currency classification standards Methods 1 This is classified by issuers, which can be divided into public money (legal currency), private currency and regional currency (community currency). Public money is generally issued by the government. When it exists, it is generally dominant. Private money and regional currency are issued by non -governmental agencies. classified by material capital. In different historical periods, people use different items as currencies. It can be divided into shells, beads, sticks, metal currencies (see commercial currencies), banknotes and digital currencies. In terms of nature, it can be divided into real currency and virtual currency.
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