I'm trying to make a ko = money leaderboard, any help finishing it?

I'm making a leaderboard where when you kill an enemy, you get 10 money. The problem is, I have no idea how to make the ko wo part and make it so that 1 kill = 10 money. Any help? Here's the scipt:

game.Players.PlayerAdded:connect(function(p)
    local stats = Instance.new("IntValue", p)
    stats.Name = ("leaderstats")

    local money = Instance.new("IntValue", stats)
    money.Name = "Money"
    money.Value = 50

    local Kills = Instance.new("IntValue", stats)
    Kills.Name = Kills
    Kills.Value = 0
end)

Thanks!