Over the summer, Random House Chief Executive Markus Dohle told the German Magazine Der Spiegel that he expects eBooks to contribute to more than 10% of its U.S. revenue next year.  And now, HarperCollins CEO Brian Murray is sharing some numbers which sound similar.

According to Publisher’s Weekly, Murray told a panel at the Frankfurt Book Fair yesterday that eBooks made up about 9% of HarperCollins’ total revenue this year.

PW has more: ”…but when that number was adjusted to filter out things like children’s books or other materials not easily consumed digitally, closer to 20% of trade title revenue was now derived from e-books.”