How to calculate -To Hit Debuffs on mobs and Soft capping my defenses?

[SmalltalkJava]

How do i calculate my overall defense in regards to the soft cap if i take into account -To Hit Debuffs that I place on mobs?  Lets say I have 40.4 Smashing Defense.  What -To Hit do I need to place on a mob so get to soft cap defense for Smashing?   Is there a sliding scale that I can check against?

 

 

Edited September 30, 2019 by SmalltalkJava

[Caulderone]

Assuming the mob doesn't resist the debuff any, you'd need 4.6%.

 

The -tohit and defense need to add to 45% for non-incarnate mobs.

 

Here is the formula at the top of this page:  https://paragonwiki.com/wiki/Attack_Mechanics

[Sainguine22]

I've done the hardest content in this game and never once checked any stat lol.just get attuned stuff, slot it,smoke one and enjoy. You're thinking too much homie