Fluctuations

An Asian man walks into the currency exchange in New York with 2000 yen and walks out with $72.  Next week he walks in with 2000 yen, gets $66.  He asks the lady why he got less money this week than last week.  The lady says "Fluctuations".  The Asian man storms out, and just before slamming the door turns around and says "Fluc you clazy Amelicans too!"