New home sales unexpectedly plunged much more than economists projected in July for the second month in a row, and amid the falling demand, rising home prices are starting to slow down—prompting experts to predict long-rising housing inflation could be due for a turnaround soon. About 511,000 new single-family houses were sold last month on a seasonally adjusted annual basis, plunging 12.6% below the June rate of 585,000 and coming in sharply below analyst projections of 574,000, the Census Department reported on Tuesday. Despite the plunging demand, prices actually recovered: The median sales price of new homes climbed to $439,400...