"Why did my overall % rate go down "
"CHANGES AGAIN!!!! "
There has been no recent feedback policy changes that would affect how your rating changed.
It is simple:
The feedback rating is based on feedback received in the
last twelve months only.
If you had 12 new feedback recently added, all positive but drop 20 feedback (for example) that are now more than 12 month old, your percentage may go down a small fraction.
It could be that it went from 99.56% (rounded to 99.6% to 95.52% (rounded to 95.5%).
.