Leaderstat value changes ONLY on client. How do I fix it?

So, I have made a script for spawning cars thru a GUI, and made it a localscript, so when you press the textbutton you purchase the car, and the second time you press it you spawn it, and what i saw is if you purchase it it will only take the money from client, and when i did print(game.Players.neymarSword.stats.cash.Value) the value was the same as it was before the purchase What i tried is making the script not a localscript, but a normal one, but when i did that - nothing happened

script.Parent.MouseButton1Click:Connect(function()

if script.Parent.Parent.Purchased.Value == true then
	-- Spawn it
	game.ReplicatedStorage.SpawnCar:FireServer(script.Parent.Parent.Name)
else
	-- Let them purchase it	
	local PriceOfItem = game.ReplicatedStorage:WaitForChild("CheckPrice"):InvokeServer(script.Parent.Parent.Name)

	if game.Players.LocalPlayer.stats.cash.Value >= PriceOfItem and script.Parent.Parent.Purchased.Value == false then
		-- The player has enough cash
		game.Players.LocalPlayer.stats.cash.Value = game.Players.LocalPlayer.stats.cash.Value - PriceOfItem
		script.Parent.Parent.Purchased.Value = true
		script.Parent.Text = "Spawn"
	end
end

end)

my script ^

Is it a server script if not then make it one.

Remember that a LocalScript will only overwrite properties on that client, not anywhere else. Therefore, when a player purchases an item, their Cash will only be affected on the client, not the server. You will need to use a RemoteEvent/Function to affect the Cash value on the server.