Question about selling items on Trade

The service appears to have a coin fee. Just to make this clear, is this fee like an auction deposit that's going to be refunded, or is it like a commission fee?

If for example I'm selling 3 coins' worth of gold, would I need to pay 1 coin to be able to do that, or is that coin going to be refunded on a successful sale? I'm really hoping it's the latter because it seems kind of pointless to pay 1 coin in order to buy 3 coins.

Fee is taken from the amount of coins you get if someone buys your gold. If you want to get 3 coins you have to put 4 coins as price. Fee is not taken if your trade expires and is not sold.

you will not lose any of your Coins.

If you put something for 3 Coins once it is SOLD you will recieve only 2 coins, instead of 3. That is it

Gotcha. Thank you.