In its second week, sales for No Easy Day fell 30% to 176,000 copies, according to the outlets tracked by Nielsen BookScan. The numbers were still more than enough to keep it in the #1 spot for all titles--Fifty Shades of Grey landed at #2 with 77,000 copies sold. In its first two weeks, Mark Owen's book has sold 430,000 copies at outlets that report to BookScan.

This week marked the first time since No Easy Day was first announced in late August that the book wasn't Amazon's #1 bestseller. On September 19, the top book on Amazon was Eat to Live.