Doing currency conversions on the fly is something that strains my brain. When I was in Copenhagen in 2005 for reboot I never got the Kroner-Dollar conversion right, and I was always buying things I thought were $5 but that were actually $50.

Things aren’t so bad in Japan right now, however: according to the Bank of Canada, the current value of the Canadian dollar is almost exactly 100 Japanese Yen, which means that to get Dollars from Yen you simply divide by 100.