This is a difficult question to answer because there are many factors that can affect an author's earnings, such as the length and price of their books, how many books they have available, and how well those books are selling. In general, however, it is safe to say that romance authors can earn a decent living from their book sales on Amazon.
There are a few different ways to make money on Amazon as an author. The most common is through Kindle Direct Publishing (KDP), which is a program that allows authors to self-publish their books and set their own prices. Authors earn a 70% royalty on books priced between $2.99 and $9.99, and a 35% royalty on books priced outside of that range. So, for example, if an author sells a book for $5.99, they will earn $4.19 per sale.
Another way to make money on Amazon is through Kindle Unlimited (KU), a program that allows readers to borrow books from a library of titles for a monthly fee. Authors are paid based on how many pages are read, with a rate of $0.006 per page. So, if a book is 100 pages long and is borrowed and read in full, the author would earn $0.60.
Finally, authors can also make money on Amazon through book sales on Amazon's Marketplace. Authors earn a 60% royalty on books sold through this platform.
In conclusion, romance authors can make a decent living from their book sales on Amazon, though there is a lot of variation depending on factors such as book length, price, and sales volume.
