Profiting from KDP. Almost like lottery
Amazon earn billions on KDP not because the oithors make money. They have millions of authors work for free and they earn from all sales.
So most self authors do not know that everyone is their same situation.
But it’s fun and good for society.
Here it is:
Amazon doesn’t publish an official “% of KDP self‑publishers who are profitable,” and there’s no single authoritative number. But several independent surveys and data aggregators give a consistent picture: most titles earn very little, a small minority earn serious money, and Amazon’s own disclosures focus on total payouts, not per‑author success rates.