I asked the authors of The Expanse series which format put the most money in their pockets, per sale. They said that it was even between all formats, even thou

I asked the authors of The Expanse series which format put the most money in their pockets, per sale. They said that it was even between all formats, even though the cost to distribute the ebook version was significantly less. I don't mind paying $15 for a book if the author(s) are paid well.