The screen you see when editing a Currency along with a description of the fields and their purpose is shown below.
Currency name
Enter the currency name
Published
Set to Yes to publish the currency or No to unpublish it
Exchange Rate
Enter the value of the exchange rate in case of a fix rate, or enter 0 to use a dynamic rate.
Dynamic rates uses the currency rates provided by the European Central Bank.
Code 2 letters, Code 3 letters, Numeric Code
Those 3 codes are the ISO 4217 standard currency codes. They are used for the dynamic rates and by the payment plugins.
Currency Symbol
The currency symbol will be the one displayed along with the prices. Even if a standard exists for the currency symbols exists, they are only use for display.
Decimals
Decimal is the number of decimal used to display prices for this currency.
Decimal Symbol
The decimal symbol is either "." or "," depending on the currency.
Thousands Separator
Depending on the currency the Thousands separator is usually a "space", or a "." .
Positive Format, Negative Format
The prices will be displayed follwing that pattern
For Positive or Negative Format, use
- {sign} for the algebraic sign,
- {number} for the value and
- {symbol} for the currency
as placeholder, all html tags are allowed, except the character | is not allowed
For example
{sign} {number} {symbol}
will display a price like "+ 42,23 €"