One of the services I offer my clients is remote user testing. I use usertesting.com. I charge the price of the test (about $40) per participant and then for my time developing the tasks and analyzing the results (watching videos, writing report, making recommendations for changes). I also include up to 10 hours of design changes. The whole package comes to about 4K-6K depending on the number of test takers (6-12).
Does this sound reasonable? Too high or too low? Would anyone be willing to share what they charge?