basic math question

Hi all,

I know this is stupid but...I would like to know how to calculate my defences.

For example if I have 85% evasion and 75% block chance how much total chance I have to avid attack dmg? I dont know what is the formula of calculating it from multiple percentage based sources.

Thx

The game will check for each independently of the other.

Evasion - a somewhat convoluted mechanic - will be checked first;
https://www.poewiki.net/wiki/Evasion#Mechanics

I think this is a good place to start:

https://www.youtube.com/@EngineeringEternity/playlists

Its old but still viable.

Evasion is calculated first. 85/100

Block later in the order. 75/100

In this case chance of being hit is 15/100 * 25/100 = 3.75% chance of being hit, or 96.25% chance to not be hit.

https://www.poewiki.net/wiki/Receiving_damage

"

The game will check for each independently of the other.

Evasion - a somewhat convoluted mechanic - will be checked first;
https://www.poewiki.net/wiki/Evasion#Mechanics

This is correct, for the purpose of this calculation the order does not matter, but it may matter for other things, for example on block mechanics.

Evasion works off an entropy system as eluded to by this poster, so every hit will not have the same probability of being taken or avoided. The evasion proportion is more uniform in it's distribution to the 85%, each roll is dependent on the other rolls. While the block mechanic is random at the 75% value, each roll being independent.

Basically meaning, hits taken from evasion will be more evenly spaced out, while block you could get a string of good/bad luck.