IF it can be done in USD? Just how far north do you think I live? >;-)

I can do it in KCD (Kent County Deer). 10 Red Squirrels = 1 Rabbit; 2 Rabbits = 1 Partridge; 100 Partridge = 1 Deer. It gets a bit complicated because the values are based on DST. That's Deer Saving Time which, of course, changes upon the winter and summer solstices. The exception is, of course, the Moose which is a constant value for both the Cow and the Bull with 2 Cow = 1 Bull (= 10 Deer, again, depending on DST). I would add the breakdown of the Turnip, the Spud, and such but I am sure you get the gist of it.

I'll check the exchange rate as soon as the Bank of Kent County opens... Tuesday, after lunch, I think.