How does the armor value work?

I have 114 armor right now, but I don't really know what that actually means. By how much does this reduce the damage I take? Is the armor value substracted from incoming damage, or is it some kind of proportional reduction of damage?
At the moment I only know that higher values are better, but the details would be rather useful to know so I can make an informed decision between light, medium and heavy armor.
How exactly does the armor value reduce damage, what is the formula?
Best Answer
There has been actually a lot of debate in the past (regarding Witcher 2) about this formula.
After some research I found out that
Damage Taken = Damage - Armor
So if you have 100 (picking 100 for an easy to grasp number) Armor and the enemy strikes with a 200 Damage attack. You get hit by 100 Damage.
According to this discussion Damage Reduction also comes into play and calculates based off your armor. So if you have 100 Armor and that armor has 20% Damage Reduction. Then effectively you will "have" 120 Armor.
I'm assuming the system still works the same. Because this kinds of things are hard to find out.
If I find anything out I will update my answer with findings if relevant.
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You get hit by 100 Damage. According to this discussion Damage Reduction also comes into play and calculates based off your armor. So if you have 100 Armor and that armor has 20% Damage Reduction. Then effectively you will "have" 120 Armor.Elden Ring ARMOR STATS EXPLAINED - How To Make Builds - Ultimate Guide
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