The exact figure was 22.55% according to a Mashable article summarizing the recent StatShot study by the Association of American Publishers.
The article paints a pretty sunny picture for the book business, saying:
Total industry revenues increased 6.2% to $7.1 billion, of which $1.54 billion came from ebooks. Net revenue from adult fiction/non-fiction and children’s/young adult books rose as well — though revenue in the third category, religious presses, did not.
It wasn’t just ebooks that sold well. Downloadable audiobooks and paperbacks also saw year-over-year increases, as did hardcover copies of books in the children’s/young adult category.
And we should also keep in mind that these are just the figures for the traditional publishing industry. Add in eBook sales for self-published authors and it’s clear that the eBook boom is still… booming. As if you needed proof!
[eReader image from Shutterstock.]