Looking at raidbots.com/epeenbot/us/korgath/kylesmom/ for Protectors of the Endless 10N on the latest parse, the player hit 101k and is just barely over the 75th percentile. But going over to worldoflogs.com/reports/rt-8flxki1gyet2rlg6/rankinfo/ and seeing the rank limit of 85k makes me wonder which is more accurate to determine how well you're performing against all others of the same class/spec.
The lowest DPS for top 200 is around 104k. Being in the top 200, I'd assume is close to the 95th percentile.
I know that normal mode parses are very weak to look at, but I figured it wouldn't matter in my issue.
TL;DR: WOL's ranks or Epeen Bot's percentile?
Edit: Couldn't post links, so you're going to have to copy paste the text.
Edit2: I see now that the guild is premium, so its extremely easy to get ranked. This answers all my questions...