how do I decrease the leaderstats value with a click detector?

I tried to make it whenever the player clicks the part, their money goes down by 10, it does not go down, what do I do

Script:

local click = script.Parent

click.MouseClick:Connect(function(player)
    local leader = player:WaitForChild("leaderstats")
    local cash = leader:WaitForChild("Cash")
    local money = cash.Value

    money = money - 10
end)