Witness rewards are 10% of the rewards pool. Curation rewards come out of the rewards pool.
I proposed many years ago eliminating curation rewards and replacing them with HBD savings accounts with a high interest rate*, which latter has been done, while curation rewards have risen to 50%, which obviously is a deprecation of curation that replaces curative interest in the quality of content and author with pecuniary interest, resulting in Trending resembling late night TV marketing.
Edit: actually Edicted proposed the savings accounts to replace curation rewards, but I had long prior pointed out curation rewards deranged curation and were unnecessary to provide incentive to upvote content.
I will let you read between the lines here:
Reward pool that actually goes to authors ~30k / month
Burns ~15k / month
HBD Stabilisier ~15k / month
Witnesses ~40k / month
Curation ~60k / month
Edit, plus, DHF - whatever the DHF does per month...
Some folks are making a good living raping the rewards pool. I'm not one of them. I appreciate the factual data you provide because it shows my understanding of the situation was very poor.