In doing so, you can freely calculate damage bonus on a base unhasted delay as a DPM in a simple function. The haste is a tertiary increase in damage ontop of base models and should NEVER be considered as part of selecting a weapon, as it is totally irrelevant*
So a 10/20 with a CoF and 30% spell haste for example:
66% damage increase.
New delay (irrelevent and cosmetic) = old delay * (100/166) = 12.0. Whether its rounded up or down does not matter at all, because noone cares and it has nothing to do with a long term performance of a weapon.
*Except when calculating damage shield incoming damage, riposts damage percentage increase and mark of karn healing per minute increase.
To do so:
Percentage increase in hits per timeframe = (1-(100 divide by haste%+100) * original delay)/original delay)*100
So increase in riposts percentage on a 20 delay weapon with a CoF only:
(1 - ((100/(100+36))*20)/20)*100
= 26.47% more damage from riposts, more healing from mark of karn, damage shield damage taken.
Hasted delay value has absolutely no factor in it, and noone should ever care as there is no delay minimum that can be reached.
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