So I've been parsing my hybrid build. (i90 penta melds, Wootz penta melded) Puts me at 590 parry. My block rate and parry rate vary between 20-21%.

That fits into the ~13.5 parry per %. 590-341 = 249/13.5 = 18.4=9.75 = 28.15 80*28.15 = 22.52

I did about 10 t9s using the build and some attacks can't be parried so that supports the margin of error.

Going to use a different parry amount the next time we farm.