I bet that's just the residual for July, and the lease numbers on here were incorrect - the X5 lease numbers were all incorrect this month, it seems like there are a lot of errors this month.
You can always check the residual by going to BMWUSA and looking at the lease specials. The 550i is currently listed at 58% for 10k/36month, so 57% for 3yr/12k. You can ask in the Dealer forum to see if the buy rate is also supposed to be lower.
I don't think BMW lowers numbers halfway through the month.
Past: 2011 X5 35d .... 2007 530i ..... 2002 530i ..... 1999 Honda Civic ..... 1990 Honda Accord ..... 2008 TSX