Additive and multiplicative damage query pls

have seen this mentioned various times as well as seeing various complex equations over the years but have never seen a simple explanation for those of us who are basic neanderthal types lol.

for example - say i have a shock grenade that does 100 damage (to keep things simple)
i have 2 relics, one that gives 30% grenade damage and one that gives 15% shock damage.

on the surface, the former seems a no brainer - but is it as simple as that?

on top of all this of course we have critical damage for weapons which adds (or multiplies) a third layer to all of this.

if anyone can explain this or put a few simple equations to us, that would be great. i am sure it would help a fair few of us with skill and equipment choices for chasing our own meta :slight_smile:

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First. I havent seen any mention of these in BL3. Yet…
They probably exist and it’s quite possible I just missed it.

To oversimplify it.
Let say we have two (2) 30% bonus. Base damage is 100.
For ā€œadditiveā€ bonus it’s quite simple. 30% times the base damage for each.
100 * 0.30 = 30
Two (2) 30% additive give you this.
100 + 30 +30 = 160

ā€œMultiplicativeā€ work the same but is" added/multiplied" later in the formula. So if you have a 30% additive and 30% multiplicative. (Think Bone of the Ancient here. That’s the most common example/use in BL2.)
100 *.0.30 = 30 —> 100 + 30 = 130
That is your additive. The base on which your ā€œmultiplicativeā€ will be applied.
Then you apply the multiplicative.
130 * .30 = 39 —> 130 + 39 = 169
In other words… Multiplicative is "multiplied " on top of the ā€œaddedā€ bonus.

These are small numbers and only two ā€œbuffsā€ but you can see where it’s going… up! :wink:

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