[greeneggs]

Here's a typical breakdown, from 2010: "Out of that gross revenue, the publisher pays about $3.25 to print, store and ship the book, including unsold copies returned to the publisher by booksellers."

http://www.nytimes.com/2010/03/01/business/media/01ebooks.ht... (and the graphic: http://www.nytimes.com/imagepages/2010/03/01/business/01eboo... )