Forum:Number next to a change in an article???

What's the number to the right of a change with a + sign or a - sign before the number? Hopefully for my sake the + sign is good :P. Sorry if this was already asked. Gaaaaaary 06:22, 1 August 2009 (UTC)
 * It says how many characters have been added (+) or removed (-) from an article in the revisions listed on Recent Changes. -- Porter21 (talk) 10:45, 2 August 2009 (UTC)
 * Thank you very much! This wikia thing is awesome! Gaaaaaary 06:59, 9 August 2009 (UTC)