Product retouching questions

I am looking to get back in to retouching again. I have over 10 years of experience doing it.

What do you normally pay for image editing services? Do you pay hourly or per image, or job? Do you hire retouchers in the US?

I would greatly appreciate any feedback—thanks!

Here is my upwork profile if you have time to browse it.

https://www.upwork.com/freelancers/~011ebee280a473789a?viewMode=1