Win Percentage?

How is it calculated with terminator games? Is this the right forum for this? I don't know! New… stuff… CONFUSING!
Conquer Club, a free online multiplayer variation of a popular world domination board game.
http://www.tools.conquerclub.com/forum/
http://www.tools.conquerclub.com/forum/viewtopic.php?f=6&t=20363