New Homes Sales, the Rest of the Story
To my knowledge, no one keeps data on the percentage of contracts that are broken, but there have been reports from some builders in California and Florida of cancellation rates in the range of 20-30 percent. If the nationwide rate of cancellation is even 5 percentage points higher than last year, it would conceal a sharp falloff in actual sales.
One key measure that gets around this issue is the number of unsold homes. This was 556,000 in May, essentially the same as April's record high of 560,000, and more than 100,000 higher than the inventory of 450,00 reported in May of 2005.