Can you help me with finding a variable?

**I found this script for a money stat but I do not know the variable to increase or decrease the value of money, here is the script: **

print("Cash Leaderboard Loaded")


function onPlayerEntered(newPlayer)

    stats = Instance.new("IntValue")
    stats.Name = "leaderstats"

    cash = Instance.new("IntValue")
    cash.Name = "Money"       --name of currency (e.g. cash, money, resources, bucks, etc.)
    cash.Value = 1000      --starting money.

    cash.Parent = stats
    stats.Parent = newPlayer
end



game.Players.ChildAdded:connect(onPlayerEntered)