What is a reasonable rate for proofreading a manuscript in terms of sales percentage?
If offered a percentage of profit for an ebook (e.g. after Amazon's cut), what is reasonable charge for proofreading a somewhat specialized non-fiction manuscript, written by someone whose first language is not English (to be fair neither is mine)? I realize the answer will be 'it depends', but just wondering if asking for 10%-15% is too much?
A reasonable rate would likely depend on a multitude of factors including: the time frame, the length of the work, the experience level of both the editor and writer, and the projected sales.
I would defer to the Editorial Freelancers Association, their basic rate sheet can be found at: https://www.the-efa.org/rates/
