Do these drop buffs stack for Evo world?

So I randomly checked my core inventory and found that I have a bunch of Mineral Drop Rate +100% cores. I also have a few 20% drop cores in there. Since I'm looking for Mithril Ores, I wanna know if these would stack:

Mineral Drop +100%
Drop Rate +20%
Mithril Drop Core

How much drop would I get total if these are my only 2 buffs?

Thanks in advance

They should add up to be 120% since both core types are different.

They should add up to be 120% since both core types are different.

I thought all drop rates stack multiplicative right? Also, what does it mean to "add instances of the drop rate" for the Mithril Ore Core?

I thought all drop rates stack multiplicative right? Also, what does it mean to "add instances of the drop rate" for the Mithril Ore Core?

Well, either way it would be 120%, and it means that it won't drop the ore in question without it.

Well, either way it would be 120%, and it means that it won't drop the ore in question without it.

I thought when it says +100%, it means x2 right? So 2*1.2=2.4 right?

Usually when I hear +x% drop rate they really mean 1+x%. Ie. A Big Spider says +60% drop rate so wouldn't it be 1.6?

I thought when it says +100%, it means x2 right? So 2*1.2=2.4 right?

Usually when I hear +x% drop rate they really mean 1+x%. Ie. A Big Spider says +60% drop rate so wouldn't it be 1.6?

Drop multipliers are so confusing, I don't know whether they add or multiply -_-

I don't think anyone knows whether the EVO drop rate cores stack additively or multiplicatively with each other.

They do stack though, otherwise the Unique drop core (purple one) would be pretty useless.