Question on leaderstats values

Help and Feedback Scripting Support
#1

I was wondering how can I get the previous value of a leaderstat and then get the changed value of it, then subtracting it, giving me the difference of the 2. I’ve had problems on how to do this and have tried multiple things, but nothing seems to work. In some games you see when you get currency added to your stats it will do an animation on how much you got. Here is some code I tried:

local function GetDifferenceGold(plr, newGoldVal)
	local leaderstats = plr:WaitForChild("leaderstats")
	local gold = leaderstats:WaitForChild("Gold")
	local difference = gold.Value - newGoldVal
	
	return difference
end

new.Changed:Connect(function(val)
	if new.Name == "XP" then
		local XP = plr.leaderstats.XP
		local MaxXP = plr.leaderstats.MaxXP
		local Level = plr.leaderstats.Level

		if XP.Value >= MaxXP.Value then
			XP.Value -= MaxXP.Value
			MaxXP.Value *= 1.25
			Level.Value += 1
		end

	elseif new.Name == "Level" then
		local XP = plr.leaderstats.XP
		local MaxXP = plr.leaderstats.MaxXP
		local Level = plr.leaderstats.Level

		if XP.Value >= MaxXP.Value then
			XP.Value -= MaxXP.Value
			MaxXP.Value *= 1.15
			Level.Value += 1
		end
	elseif new.Name == "Gold" then
		local diff = GetDifferenceGold(plr, new.Value)

		print(diff)
	end

At the end I tried to print difference, but it just prints 0 everytime. If anyone has any idea on how to do this it would be appreciated!