Account Value question

Hello:
I have a question about my account value. I donate 7 games. The steam price is arround U$S 85 but my account value is U$S 30.
It's this value correct? How it's measure this value?
I post images of my profile and the list of the games. (i give away some games about 1 day and i read that the value is update almost instant or perhaps some ours.

profile: http://www.freeimagehosting.net/z69cv
Gifted Games: http://www.freeimagehosting.net/n2rb2

Thanks for the replys.