I have some music available for streaming. In November, I had a total of 5126 streams, which gave me 14.611 USD.
If we extrapolate that to 1 million streams, it would be $2850, but Gary is saying he's getting less than 2% of that.
The aggregator I'm using (my only middleman) takes 15%, already subtracted from the numbers above. Gary's middlemen apparently take over 98%. That sucks, but it doesn't appear to be the fault of the streaming services.
One caveat to note about these numbers is that the value of streams seem to differ a lot between countries. It's possible that Gary has more listeners than I do in less-lucrative countries. I don't think it could cover the whole difference. The most likely explanation is that Gary's record company is taking most of the money, and/or he has to split it with others who were involved in the creative process.
If anyone is interested in my earnings data (further analysis, charts, peer review, whatever), it's available here: http://dolkow.se/files/streams_nov20.xlsx