Amazon's cloud growth dropped to a record low, but analysts say a different number in the company's financial statement keeps them bullish (AMZN)

· Amazon Web Services saw its revenue growth drop to 29% in the second quarter — the lowest that metric has gotten since it started disclosing the number in 2015.
· But AWS's backlog revenue, or the total value of signed contracts, jumped 65% to $41 billion during the quarter, recording the largest growth since the first...