I'll Mini-necro before making my own thread as this seems relevant. I have a question for some of you cleverer folk (its totally a word, i swear!)

When you sell a steam trading card for say R1.00. Is that price static? The rand fluctuates with the dollar (especially the last couple months), and I was wondering, does that mean our price for this R1.00 card would be going up and down on the "global" community market? or does steam convert it into dollars at the time and then set it as that?