This popped up very recently in a recent thread: http://forum.square-enix.com/ffxiv/t...reat-in-t10-12.

Quote Originally Posted by Ippiki View Post
Extremely related




This was done as a WAR on Lv 49 mobs in North Than, removed any magical attacks, and removed all dodges from the equation.
A bit of Parry testing as a WAR(meaning no shields and therefore no rate dilution) and I can only hope that it was actually performed recently. These stats also support the notion that each point of Parry imparts about 0.075% rate, assuming a base Parry rate of 10%.