Function to prefix numeric value with currency character
The CURRENCY() function returns the specified <expN> as a character string prefixed with the current currency character which can be set with the command SET CURRENCY TO <expC>. The default for SET CURRENCY is "$".
Note for locale specific settings:
To change the separator character from a ',' use the SET SEPARATOR TO command.
To change the point character from a '.' use the SET POINT TO command.
set currency to "$" ? currency(88.00) $88.00
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