How to calculate my necessary accuracy rating?

Hello guys, question is it.
Almost all my characters having 'Resolute Technique' passive skill, that's cool for low attack speed and powerfull meele hits, good when leveling also. But now i thinking about add crit stat in my build for better dps, elemental statuses, more charges for discharge etc. So now i just afraid if i respec some point in my build tree to crit nodes and my accuracy rate will be not enough to effective playing. I want to have 94-95 chance to hit always. How calculate this? On wiki i find this formula:

"

Chance to Hit = Attacker's Accuracy / ( Attacker's Accuracy + (Defender's Evasion / 4) ^ 0.8)

But this 'defender evasion' confusing me a bit. Obvious that stat scaling depend of area and monster lvl, but how exactly possible to know it?
So I need advice from lvl ~75+ meele crit build players, how much accuracy you have, how it's going on, any tips maybe.
My setup is shield+1h - axe, mace or sword (does not matter which exactly atm) but not daggers and claws, these nodes too far. Specially don't want to discuss about concrete builds, only stats are interesting now. Thanks.

Using that formula and a few of my characters stat sheets without RT I calculated the average mob evasion for an equal level of mob for these levels of characters.

Lvl DefenceEvasion
50 1200
71 3200
77 4000
22 275

So an example of if I wanted to get 95% on say the lvl 71 character would be.

Hit AttAcc DefEva
64.03% 374 3200
78.07% 748 3200
87.68% 1496 3200
93.44% 2992 3200
96.61% 5984 3200

I would need to raise my Accuracy from 374 to 2992. Only way to raise accuracy would be to increase either Accuracy% or add dexterity. One dex adds 2 accuracy.

Damn it's huge amount.
Need to calculate and check my build and gear.
Thanks a lot, Mr_Bill.

"

kainaj wrote:

Damn it's huge amount.
Need to calculate and check my build and gear.
Thanks a lot, Mr_Bill.

No problem, you can also sneak up on the numbers without the math by looking at dps screen shots that people put on the their published builds.