In business writing, currency is usually expressed in symbols and numerals (e.g. $10).
Different currencies: When writing about different currencies that use the dollar, you can use:

a letter or letters symbolising the country followed by the $ sign (A$10, US$10)
a three-letter country code as specified in ISO 4217:1995 (AUD10)
$ sign followed by the country symbol ($A10). [...]

Posted on February 17th, 2009 by admin
Filed under: Uncategorized | No Comments »