Regarding Mastery and Rounding.

I'm trying to find accurate information on how mastery is treated when mastery rating X = Mastery Y.yy = Skill %Z In terms of rounding.

Example 1, where mastery % per point(not rating) is multiple %s, not just 1 point = 1%
- Each 180 (rounded up for ease) Mastery rating = 1 mastery.
- Mastery Skill A does 2.1% chance per 1 mastery.
- The base mastery skill is 16%
- I have 403 mastery.

403 mastery rating into mastery points is 2.27 ish.
2.27 rating x 2.1% chance per mastery gives me a +4.767% chance on top of my base 16%
This yields 20.767% chance (displayed as 21%, with no decimal places)

((The above is a MM Hunter))
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Example 2 (which I cant show as effectively as I don't have a spec ready to display this.. but can describe...)

Same numbers, this is a survival hunter mastery example
- 403 mastery
- base skill % is 8%
- Each 1 mastery point = 1% skill
- 180 mastery rating per mastery point

Again, this would yeild out a 4.767% increase on top of the base 8%. However, as survival hunter, the tooltip displays 12%, not 12.77%, not 12.5%, not 13%.... just 12%.

I have other classes masteries which display similar issues, much more noticably with masteries that are 1 mastery point = 1% Skill XYZ.

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The question here is -
For those masteries which do not have decimal places (marksman is 2.1% per mastery point, survival is 1% per mastery point), does mastery actually work with 10ths and 100ths of a %? or if Im sitting at X.95 mastery points, are my 0.95 rating points worth completely wasted? Why does the tooltip not reflect 10ths and 100ths?


I think the Hunter Forum would be the best place for your query, if this is just related to Hunter masteries.

Edit: if you're asking about all masteries, General would likely be the best forum.
Here ya go.

http://us.battle.net/wow/en/forum/1012664/
Yes
This is in regard to all masteries, Im just a hunter so easy to give examples.

I would appreciate a blue response to this, or a link to a confirm-able source that says *Yes there is a hidden decimal place that is not shown* etc...

General (Forums) is useless.
Bullettime said yes.

and this topic isn't new. its been discussed and proven to be yes.
Im sorry! I thought he was saying yes to using the hunter forums or such ...

... Any source material to review that I can see?
feral druid mastery http://us.battle.net/wow/en/forum/topic/2416195931

hunter mastery Zeherah's test http://us.battle.net/wow/en/forum/topic/2016792427

mmo-champ http://www.mmo-champion.com/threads/817588-Does-mastery-round-down
Thank you Nightsights! .. I must have missed that in the EJ FAQ.. been awhile since I read that.. usually just track the MM Thread.

GL on your heroic rag if your still working on him!