ASX Spotlight New York Thursday US Time, page-41

Sorry that this doesn't have anything to do with your post clip but I've just left facebook and found that many countries around the world are using Bitcoin, as an example a petrol station in Pakistan shows Bitcoin on their pumps. In Argentina Bitcoin is being used for payments. I reckon that large department stores (if some haven't already) will be accepting them. What I don't understand is how they are valued, I read about auctions but where and by whom?
I was never good at maths so there was no way I could become an accountant, I know that one doesn't have to be one but it would have helped.