% rates in MapleStory.

They stack instead of multiplying, correct?

Not always.
I think critical percentages stack.

I know all the warrior stuff is multiplicative.

If you mean 2x exp and thus, they multiply.

If you mean the %stat boostsyeah they stack.

About critical, I think they stack.

Critical is mainly what I am talking about here because I had someone fighting me me that critical rates are multiplied.

If you mean 2x exp and thus, they multiply.

If you mean the %stat boostsyeah they stack.

About critical, I think they stack.

So, with something like this;

the %s would just add up and then boost the stat, making it +12%?

So, with something like this;

the %s would just add up and then boost the stat, making it +12%?

Yes. Because for the system to determine an order would be impossible and would result in the stat boos varying every single second.