Thank you for the breakdown. Informative article and the hidden 0.15 / MB is, as you say, a lurking Amazon pain point. However, though my math is appalling, TCK publishing has an oddity in its report, no? 'Daily' sales of 1769 books over a month is not 26,537, but closer to 53,000. This is almost double. Thereby daily sales of $ 7,199 equates to $215,000. I think TCK has some numbers askew. The monthly earnings are half what TCK is estimating or are the two numbers completely independent? So, ' books sold per day' is. a misnomer.
But regardless, self-publishing for the select few can be profitable, for the unwashed many, irregardless of book quality, it is more often a pit of broken dreams. Thank you for the breakdown of publishers.