I'm pretty sure I know how it works.  You may not be able to predict the exact number, but the math restricts it to a pretty small range.  I'm pretty sure that no such math exists for CNY.

Inflation is never needed.  It is a tax that, for all intents and purposes, is paid only by the poor.

EDIT: Hey, notice how I was able to make my point w/o including a picture of ponies?  You should strive to emulate that kind of self-restraint