I don't know. With the discount, "Frozen" passed BEYONCe on iTunes. However, I am not sure how much impact BEYONCE will make with physical copies. They predicted she was going to sell 250K last week, but ended up selling 310K.
I just hope she goes #1, and my guess is 125K.
Very sensible numbers 60% drops are quite common this time , I wouldn't be suprised if it was this