+% STA additive or multiplicative?

Simple question:

Base 500 STA

BoKings +10%
Sacred Duty +6%
Combat Expertise +10%

Total STA = 500 x 1.1 x 1.06 x 1.1 = 641?

Or

Total STA = 500 + 50 + 30 + 50 = 630?
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My new 0/46/15 build

Multiplicative.

It's easy to test too; try it before and after you respec, and before and after you do kings. Or take something with a big +sta boost and figure out how much you should get before and after adding it.

Multiplicative.

Basically if you want to know your new HP in 2.3, pick your stam and add 10% of that.
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Sexy. Danke!
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My new 0/46/15 build

I notice something different.

When i remove 27 stam i lose 340 hp.

So 27 stam == 34 stam.

That why the bonus of 10% and 10% and 6% are 26% because (34-27)/27 = 0.259259259 = 26%.

So the bonus are not multiplicative, but it's a sum.

It won't let you get 0.5 stam, or 5 hp as a result of having 0.5 stam.
If you use your numbers for 350 hp instead, you'll see that (35-27)/27 is 0.296, i.e. quite a bit past the multiplicative version of events.

Conclusion: You can't reliably base your conclusions on such a small change in stam.
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That's right.

So when i'll respec tank i'll check this point.

But it's 26% or 28.26%, not others intermediates values nop?

So here 340/270 it's 26%
To have 28.26% we need 34.6302 stam.
Logically 346 pv is different of 340pv, particulary on 1800+ hp.
I thinks it's true that is 26%, but i'll check that with a large change in stam.

just take off all your gear... much cheaper than respecing.

(note any +150 chest enchants)

or better yet, have a priest give you fort... anything near 100 stamina should give you a good enough idea of the % increase.
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Dwarf Pali on Ner'Zhul
"Mostly Harmless"