How do I abbreviate a large number in a GUI?

Ok so I'm making a Simulator game and you can get Coins by Swinging A Sword, so when this gui value hits 1 million I want it to to say 1M instead of just 1000000

But I haven't figured out how to do it since most ways are only for the leaderboard

How do I turn this into that:

local plr = game.Players.LocalPlayer
while wait(0.01) do
    script.Parent.Text = " "..plr.leaderstats.Coins.Value
end

https://scriptinghelpers.org/questions/68317/how-do-i-abbreviate-a-large-number-in-a-gui

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