Add costume columns for users! Help

I need a help to add costume columns for all users in backend. in this fields admin will change some info for every user. I need balance, percent and profit. Look at photo http://radikal.ru:8038/tempfiles/021a16ed35b448ffb132eef16d89308c/-88693455.png. I have a balance (plugin wp-recall), but i still need 2 columns. Thanks