4.58%
CKDB recalculates the block info a bit later to confirm the numbers and corrects it.
Was another of those rare blocks where bitcoind goes crap and takes forever to reply about the block it has (but it's sent it out on the network ok)
Again, the number in the top left of the web site is low until the next block we find resets it.
(It's low by ~0.7%)
posts like this are why I love your pool. I'm sad as a home miner I really don't have any options to add to my hashing power right now without paying over retail for used gear
pm me if you are in the USA I have gear.