Gui Currency Numbers Help?

Hello, I Really Need Help In This script And I Don't Know How The script Is About A Gui And I Really Want It To Say 1k Instead Of 1000 Like That After That It Will be 1000000 To 1M...

while wait(0) do
	script.Parent.Text = "Coins : "..game.Players.LocalPlayer.leaderstats.Coins.Value
end

Try this:

while wait(0.1) do
	if game.Players.LocalPlayer.leaderstats.Coins.Value >= 1000 then
		local shortAmt = tostring(game.Players.LocalPlayer.leaderstats.Coins.Value / 1000) .. "K"
		script.Parent.Text = "Coins: " .. shortAmt
	else
		script.Parent.Text = "Coins : "..game.Players.LocalPlayer.leaderstats.Coins.Value
	end
end

If it's greater than 1 million then do this:

while wait(0.1) do
	if game.Players.LocalPlayer.leaderstats.Coins.Value >= 1000000 then
		local shortAmt = tostring(game.Players.LocalPlayer.leaderstats.Coins.Value / 1000000) .. "K"
		script.Parent.Text = "Coins: " .. shortAmt
	else
		script.Parent.Text = "Coins : "..game.Players.LocalPlayer.leaderstats.Coins.Value
	end
end