This is the text of an Authors Guild release posted on July 26 2010. For background see Will Random House Chicken Out Again?

We don’t know the details of the Odyssey-Amazon agreement, but we can make some informed guesses. The agreement is most likely under the agency model, with Amazon paying Odyssey 70% of the retail price of the books. Wylie and Odyssey are together taking a typical agent’s commission as compensation: 10 or 15% of the 70% received from Amazon. In round figures, this means that the author receives 60 to 63% of the retail price of the book.

For comparison, a typical contract with a traditional publisher pays e-book royalties of 25% of net proceeds. If the e-book is sold under the agency model, the author’s share is 25% of 70%, or 17.5% of the retail price of the book. After the agent’s commission, the author receives roughly 15 to 16% of the retail price of the book.

For a $9.99 book under the Odyssey-Amazon agreement, the author would receive royalties of $5.94 to $6.29 per book, net of all commissions. For a $9.99 e-book under a typical contract with a traditional publisher sold under the agency model, the author would receive royalties of $1.49 to $1.57, net of all commissions. The difference is about $4.50 per unit, a 300% increase in author income.