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!

Depends if its an NPC or a real player, if you add an object value in like a gun bullet saying your name, you can easily make it that the NPC will search for the object value then find the player then the leaderstats