How "reduced" is reduced value?

So the thing is:

I had a Conan Exiles key and, as I don't like the game, created a giveaway to give it to someone who might enjoy it more. It appeared with the reduced value symbol, which I find logical since it was at 50% in discrod, but when the fiveaway ends I see that my contributor level counter only went up like 2 euros. Later I saw the game was given in a bundle in Humble Bundle not that long ago, but even there the value was something like 12 euros.

Not that I have a complaint or something, just a doubt. Is there any way of seeing how reduced the reduced value is gonna be before ending the giveaway?

Thanks in advance.