2015 eBook vs Physical Book Sales Numbers

As a book publisher I often get this question from authors - "What % of my book sales will come from ebooks versus physical books?"  Here is a chart with statistics which helps illustrate what the breakdown in sales looks like worldwide.  Note:  results will vary pretty dramatically in your own country.  In the US, the data we collect at Made for Success Publishing suggests that ebook sales leveled off in 2014 to about 27% of sales, as a percentage of sales from physical books, audiobooks and ebooks combined.