Thanks @whatageek for this information. I have actually been wondring the same.
The last three days have actually seen my post values go an down. Initially i though it was being downvoted.
And you see, they are my 'first rewards' here, and the 'big ones' especially keep me awake much of the time!!!
So seeing them rise, and then drop really got me worried. So each time they'd drop or rise, i 'd run to steemd.com to check through my account activity, then boom! Nothing. No downvotes, and no upvotes, despite the changing post reward value.
It left me confused. But now that you explain it this way, it all makes sense.
The market has been crazy the last couple of days so you will see a pretty substantial change.
True. Thanks.