I'm currently trying to gauge what critical percentage I will have on a character with gear I don't yet own, and I was curious how critical rating converted into crit %. I'm CP 430.
688 is 3%. That's the figure that 1 tier perk will give you at gold level. So something like Hundings rage or vicious ophidan with 2x 688 weapon crit will give you 6% crit.
PC Master Race
1001CP
8 Flawless Toons, all Classes.
Master Angler
Dro-M'artha Destroyer (at last)
Tamriel Hero
Grand Overlord
Every Skyshard
Down With BOP!
From my testing I found that 219 is equal to 1%. It might not be exactly that, it was hard to pin point, but I tested it for multiple days and that is what I found.