LTRIM and RTRIM won't chage values of a character string. The problem might be an implicit conversion if your Revenue column is not a character type. To avoid this problem, you should do an explicit conversion.
Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?
How to post data/code on a forum to get the best help: Option 1 / Option 2