How do I make the leaderstats go up?

game.Players.PlayerAdded:connect(function(player)
    local DataStore = game:GetService("DataStoreService")

    local leader = Instance.new("Folder", player)
    leader.Name = "leaderstats"

    for i, v in pairs(script:GetChildren()) do
        local d = DataStore:GetDataStore(v.Name)
        local x = Instance.new("NumberValue", leader)
        x.Name = v.Name
        x.Value = d:GetAsync(player.UserId) or v.Value

	coroutine.wrap(function() -- Make a new thread so the script wont hang itself and stop on the first while loop, also to migitate wait pausing everything in the current thread
		while x.Parent ~= nil do -- This will check if the value still exists so it will stop if the player leaves
			x.Value = x.Value + 500 -- Increase the value by 500
			wait(60) -- wait 60 seconds
		end
	end)()
    end
end)

game.Players.PlayerRemoving:Connect( function(player)
    for i, v in pairs(script:GetChildren()) do
        print("Getting")
        local DataStore = game:GetService("DataStoreService")
        local d = DataStore:GetDataStore(v.Name)
        d:SetAsync(player.UserId, player.leaderstats[v.Name].Value)
        print("Saved")
    end
end)