|It doesn't look good for indies.|
According to the Author Earnings site's Data Guy, indie authors' income has fallen "back to early 2015 levels." The report covers the May to October Amazon indie sales. Possible causes for the lower author earnings are explored ranging from Amazon's own book publishing arm to the Book Bub Effect. There are several sales charts included to illustrate different points in the post. In the end, there appears to be no final answer to the falling earnings.
Panzer says, "Be sure to read the Comments section under the post. There are some interesting possible causes mentioned there."
Note: This is a l-o-n-g post. Bring a cup of tea and two muffins for today's reading selection.
To read the post, tootle over to Author Earnings Report