The placement of currency symbols with respect to the amount of money varies among currencies. For example, the currency sign for the euro can be placed before or after the amount (€500 or 500 €). Latin American and English-speaking countries typically place money symbols before the amount (£100).
Decimals also dictate the placement of money symbols. For instance, abolished currencies such as the Portuguese Escudo and the French Franc replaced decimals with the currency symbols (70$00 or 90?24).
There are countries with similar currency symbols. These include the US cent symbol (¢) used in several countries to specify small money units. Symbols such as ¥ and $ are used in China and Japan and the US and Canada, respectively, to represent their respective currencies.
When the symbol of a particular currency is missing, the character ¤ is used as a currency sign to denote the currency. This character is used often when the currency symbol is not part of the font being used. This generic currency indicator is also used when the particular currency symbol is not known.