LUA-spirits aid me!

My raid team is now 8/12 normal in Throne of Thunder, and I've been a Brewmaster for a little over a month. I've learned a lot this time; my rotation and cooldown usage has improved a lot, I change talents and glyphs depending on which fight we're doing, and I understand the different stats and gearing strategies better (thanks to Sunnier and Elitist Jerks!). I got my tier 15 2-set bonus the other day, and I suddenly find myself interested in knowing how much of the incoming damage at any given time I actually stagger.

I opened WeakAuras, selected New, selected Text, and then... I realized that although I know what I want to say, I don't speak this LUA-language!

In common tongue what I want to math out is

Incoming damage that will be staggered =
20 % from Stance of the Sturdy Ox +
x % from Mastery +
20 % from Shuffle (if active) +
20 % from Fortifying Brew (if active) +
12 % from Staggering (if active)

I have a text-aura already that gives me Avoidance and Vengeance. I would like to add the Stagger Percentage info to the same frame:

function () local valAvoid=5+GetParryChance("Player")+GetDodgeChance("Player"); local name,_,icon,_,_,_,_,_,_,_,_,_,_,_, valVengeance=UnitBuff("player", "Vengeance"); if name == nil then valVengeance=0; else valVengeance = valVengeance or 0; if(valVengeance > 999) then valVengeance = math.floor(valVengeance/1000) .. "k" end; end; -- strReturn=format("Avoidance: %.1f".."%%".."\nVengeance: %s",valAvoid, valVengeance); strReturn=format("Avoidance: %.1f", valAvoid).."%%"..format("\nVengeance: %s",valVengeance); --strReturn=strAvoid.."%%" return strReturn end

I found a script for showing Mastery, but it says I have 14,77 Mastery, not the 9,86 % I really have:

-- Custom text function function () -- Don't change this (update every second only) local now = GetTime(); WA_STATS_LAST_UP = WA_STATS_LAST_UP or now - 1; if now >= WA_STATS_LAST_UP + 0.1 then -- Shedule next update WA_STATS_LAST_UP = now; -- Current values local has = UnitMastery("player"); -- Mastery -- Return text WA_STATS_RETURN = string.format([[ Mastery: %.1f]], has or 0 ); end return WA_STATS_RETURN or ""; end

If anyone knows how to set a script like this up, or can point me in the direction of something already made, I would be most grateful!

/bow