Determine gold looted - localization problems

[Arcilux]

I have an addon that keeps track of the gold you earned from doing dungeon/raid runs from both direct drops and vendor price, but I've been having multiple reports on Curse of people saying that it only counts the vendor price, not the actual gold dropped by mobs. Other people (and myself) are not experiencing this problem.

To calculate gold drops, I am using the LOOT_OPENED event:

for i=1, GetNumLootItems() do
	local _, item, quantity = GetLootSlotInfo(i);
	if (quantity ~= 0) then
		--Vendor price calculation
	else
		for line in item:gmatch("[^\r\n]+") do
			local number = 0;
			local denomination = "";
			for word in line:gmatch("%w+") do
				if tonumber(word) ~= nil then
					number = word;
				else
					denomination = word;
				end
			end
			if denomination == 'Gold' then
				lootedMoney = lootedMoney + (number * 100 * 100);
			elseif denomination == 'Silver' then
				lootedMoney = lootedMoney + (number * 100);
			elseif denomination == 'Copper' then
				lootedMoney = lootedMoney + number;
			end
		end
	end
end

I can't get anybody who reports the bug to respond, but I'm pretty sure the problem stems from my denomination check, if the player using the addon has a language other than English, it will fail.

Is there an easier way for me to check for gold looted without worrying about localization settings?

[Aleaa]

local goldPattern = GOLD_AMOUNT:gsub('%%d', '(%%d*)')
local silverPattern = SILVER_AMOUNT:gsub('%%d', '(%%d*)')
local copperPattern = COPPER_AMOUNT:gsub('%%d', '(%%d*)')



for i=1, GetNumLootItems() do
   local arg1, item, quantity = GetLootSlotInfo(i);
   
   --print('T', arg1, item:gsub("\124", '#'), quanity)
   
   if (quantity ~= 0) then
      --Vendor price calculation
   else
      
      local gold = tonumber(string.match(item, goldPattern) or 0)
      local silver = tonumber(string.match(item, silverPattern) or 0)
      local copper = tonumber(string.match(item, copperPattern) or 0)
      
      print('T', gold, silver, copper)
      
   end
end