Weighted system only gets one value

So I currently have a weighted system and I tried converting it into a ModuleScript.
The code looks like this

local weight = 0
	
	for _, chance in pairs(chancesTable) do
		weight += (chance * 10)
		print("First Chance: "..chance)
		print("First Weight: "..weight)
	end

	local runNumber = math.random(1, weight)
	weight = 0
	
	for prize, chance in pairs(chancesTable) do
		weight += (chance * 10)
		print("Module weight: "..weight.." Module Prize: "..prize.." runNumber: "..runNumber)
		return prize, chance
	end
	
	weight = 0

And the Chances look like this. Im currently using the normal spin Chance.


Chances.spinChance = {
	Nothing = 86.9;
	Extra1Spin = 8.5;
	Extra3Spin = 2.5;
	Extra5Spin = 1.5;
	Coins = .5;
	Ugc = .1;
}

Chances.betterspinChance = {
	Nothing = 74.5;
	Extra1Spin = 16.5;
	Extra3Spin = 5;
	Extra5Spin = 3;
	Coins = .8;
	Ugc = .2;
}

return Chances

the print function on the Chances works perfectly on the first script but then the weight is always 15. i cant really explain it well since i dont understand weighted systems much. any help is appreciated

Is this all the code? Is this inside a function or something? How do you use it?

Yes, the first script I provided is inside a module script as a function