I believe I know what has happened, but I can't be positive:
In Live Chess, for the three ratings groups, previously (before some recent revision) the TOTAL number of members in each group was unique and different - which make sense.
NOW, the TOTAL number of members is the SAME for ALL ratings groups, but I suspect that the RANKING for each is unique to the number of players in that groups.
I believe that the BLITZ total is now showing up as the TOTAL number for ALL three groups, which means that ONLY the BLITZ rank %-age will be correct.
On both of Blitz Live chess and Online chess, my rank, expressed as a percentage, corresponds exactly to the percentile shown on my Stats page. For Standard live chess, it does not and has not for a long time. The difference is some 5%.
Any ideas about what is going on, which is correct?