Hi I have just had the same question.
Two things I did to help me.
Pretend to place an order - that came up with the currency involved - for example Amazon Inc at approx 1700 was $1700, c.£1300...
Click on the Down Arrow next to the company (its one of the 3/4 icons), there is an option called Get info. Here has lots of useful things to help.
Hope this helps too.