changing calories

coke_momma

How do I change it to keep track of how many calories I want a day. They have me for like 1600 and then when I exercised it went higher. I want it down to about 1200 a day I figure that should give me everything I want.
Why do they add the exercise on to give you more? Hope someone can help me out with this.

betterplayer

basal metabolic rate