How do you change your gamer tag i know its something with Microsoft points but how much Microsoft points?

It's 800 Microsoft points. You have to go to your profile on the 'My Xbox" tab. There you can edit your gamertag.How do you change your gamer tag i know its something with Microsoft points but how much Microsoft points?It's 800 Microsoft points but if you don't want to pay that just have people report your gamer tag so you have to change it before you get on i did it and all my friends have done it toHow do you change your gamer tag i know its something with Microsoft points but how much Microsoft points?I havent played xbox 360 in a long time its in a corner of my room being ignored for the ps3... but i think it was 800 if i remember correctly.