While many fret that existing housing sales have recently been slumping, the angst is misplaced. Since early last year sales have declined 7%, but distressed sales as a percentage of all sales have fallen from 25% of sales to just 15%, a drop of 10 percentage points, more than the 7% drop in sales. Thus, the total volume of non-distressed sales is higher than it was a year ago. Relax.