Estimated chance to evade attacks not visible?

So, was looking at stats and realized I have no Evade chance %? Cant figure out why this is, Can i get a little help?

when I look at the character screen it shows my evasion rating (627) but don`t show the estimated chance to evade attacks with the %.
So idk if is just a bug and i`m evading normally or theres no evasion at all. Someone knows how can I fix this? I really wanna know the percentage.

First month playing. Sorry if this a silly noob question that i over looked a easy reason.

Also Char. in question.
https://www.pathofexile.com/account/view-profile/_DrStrangelove/characters?characterName=Lord_Of_Roaches

For that character level, that amount of evasion is effectively 0% chance.