Quote:

**Gaeb**:

I see your point, but in the decrease realm this is how it works:

Stacking additively: 10% + 10% = 20% reduction (80% of normal)

Stacking multiplicatively:

(100% * .9) * .9 = 81%

Multiplicative always starts with the highest # (ie: If you have 2% innate dodge and buy a ninja tabi for 12% more dodge, it does (100 * .88 ) * .98)

no your math is wrong. Multiplicative means just that. it doesn't stack WITH 100% it starts off AS a factor of 1 meaning:

10% from item 1

10% from item 2

item 1 is 100% of what you have times 10% of that

100% = 1 of whatever you are talking about

so 10% of 1 = .1

so we have 1.1 for the first 10%

now we multiply another 10% into that total as such:

1.1 * 10% more or another 100% of current and another 10% so 1.1

now the actual math problem is as such:

1.1 * 1.1 = 1.21 or 21% not 18%