Is it possible to put fractional values in the "sold for" box?

I just did 10 pame for 17 pgems, and I don't think there was a way to make that show up as anything other than 1 for 17 in the tracker.

I just sold 12

Ral for 2

Fal, can't properly mark it as sold so in Price History it looks like 1

Ral was sold for 1

Fal...

There's a box to mark quantities of stuff received, though it's a bit hard to notice if you're not used to the interface. When you put in the name of the rune or whatever, it autofills a 1 in that box; that's where you could've put the 2 for the number of

Fal you received.

But as far as I can tell, there's no way to mark a quantity for what you're selling. The best workaround I can think of is that in a few places I've noticed sales listed with negative quantities. So, if you had posted WTS

Ral, and then did that 12

Ral for 2

Fal deal, I guess the best way to record it is that you sold a

Ral for 2

Fal and -11

Ral. Which is awkward, but it at least gets the info across, provided you know that's what it's supposed to mean when you see it.