Actually search for a Floating 4 Byte, and you'll find the real value, and it wont go negative.
The thread is a sticky in the General Discussions part of the forums and someone has already asked for it - whether they're entitled to one or not, I do not know.
There are 2 good memory editor programs out there. One is ArtMoney other is Cheat Engine.
Artmoney has easier search function as in is capable searching multiple types in a single search
Cheat Engine Has a debugger and assembly. You can easly defeat dynamic memory allocation (I Forgot how to correctly call it) per each running. Good for creating trainers.