Weighted Function Not Working For Values Under 1

[2unkens (Sunken)]

why does this function not get weights which are 0.4 for example

local function RandomFromWeightedTable(OrderedTable)
	local TotalWeight = 0
	for Piece, Weight in pairs(OrderedTable) do
		TotalWeight = TotalWeight + Weight
	end
	local Chance = math.random(0, TotalWeight)
	local Counter = 0
	for Piece, Weight in pairs(OrderedTable) do
		Counter = Counter + Weight
		if Chance <= Counter then
			return Piece
		end
	end
end

[2unkens (Sunken)]

local function RandomFromWeightedTable(OrderedTable)
    local TotalWeight = 0
    for Piece, Weight in pairs(OrderedTable) do
        TotalWeight = TotalWeight + Weight
    end
    local RandomFloat = math.random()
    local Chance = RandomFloat * TotalWeight
    local Counter = 0
    for Piece, Weight in pairs(OrderedTable) do
        Counter = Counter + Weight
        if Chance <= Counter then
            return Piece
        end
    end
end

i’ve fixed it, just generated a random float, and multiplied by total weight