Cooldown Reduction Calculation

PC Bug Report
1

Hello,

I’m a level 69 Sorcerer. I was looking at my CDR when I found something interesting, the game doesn’t tell you something about.

My off-Hand (5/5- Folio) has 10.3% CDR as main attribute and rolled another 14.6% as secondary stat. Makes 24.9% to me.

My Helmet (5/5) has rolled 8.3% CDR.

My Amulet had naturally 6% CDR on it.

When equipped alone, the off-hand gives me 23.4% CDR, the Amulet 6% and the Helmet 8.3%.

Amulet and Offhand give 28% and Helmet+Offhand give 29.8%. Helmet +Amulet give 13.8%.

All together give me 34% CDR flat.
How does this work?

2

Each instance of CDR is multiplicative with eachother.

Let’s take original value of 100.
-10.3% from offhand implicit = 89.7
then reduce 14.6% of that 89.7 you get 76.6, which is a 23.4% reduction from the original 100

Same goes for the other items, if you reduce another 8.3% from 76.6 you get 70.2, which again means a total reduction of 29.8%.

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