Interesting little application...
This certainly makes out to be an interesting little application in that it takes simple values from your input and devides them and adds them together, simple but it works, especially when it's well designed.
Apparently my account at the time of this review is worth $198.97, which is very nice to know.
I think if you were admin your account would definatly be worth more than $200 though, for a site that makes so much money... Mod for $50 sounds about right though.