Итоги электронных продаж у Hachette
According to Lagardere, e-book sales in December in the U.S. were $5 million, a total that surpassed e-book sales for all of 2008. E-book sales represented 3% of full year sales at HBG USA in 2009.
За месяц как за весь предыдущий год. 3%