Hi,
How is the currency symbol appearing in your report O/P can you show us with a screen shot as (55,555.56) does not have a currency symbol in it?
Reason you are getting that is when you set the Datatype as Currency it automatically appends currency depending on the Locale settings to the number. In order to get rid of that you have to either change the data type of that field in database or we can also apply some functions on Crystal to remove that.
But to get rid of that we need to know the pattern of the string where currency id coming a combination of ToText(), Replace and ToNumber() should be able to get this done.
Regards
Niraj