Math on steal cooldown?

#1 - June 25, 2013, 11:12 a.m.
Blizzard Post

30% cooldown on steal via 30 points in trickery trait line.
20% cooldown on steal via sleight of hand in grandmaster trait trickery.

Given : Steal’s base cooldown is 35 seconds.

30% + 20% = 50%

50% = .5

35 × .5 = X

X = 17.5

Final Cooldown on steal should be 17.5 seconds.

Can anyone tell me why stealth is 21 seconds? this is a total cooldown of 46.67%.

I can see why some would say thakittens deducted concurrently rather than consecutively but it doesnt read as such. IF that were the case it would say “take and ADDITIONAL 20% off the cooldown of steal” under the description. so either we have more typo problems or ANET fails at math :P

Another way of looking at it is the concurrent multiplicative way. so you take one of the deductions then follow it with the 2nd from the firsts sum

35 × .7 = 24.5 (30% reduce from 30 trait line points)

24.5 × .8 = 19.6 (20% from the sleight of hand)

TL:DR : steal should be 17.5 or 19.6 seconds no matter how you look at it.

#25 - June 25, 2013, 12:19 p.m.
Blizzard Post

This is an error in how the tooltip has been calculated on all profession mechanic recharge trait lines. We will be fixing this in the next hot fix build.

#30 - June 25, 2013, 12:24 p.m.
Blizzard Post

Recharge rate means the speed at which it recharges, so it recharges 30% faster not 30% shorter recharge. Think of it this way.

New recharge time = (old time / 1.3) not (old time* 0.7)