As each editing and proofreading job I receive are different I charge based on your work. The quote will depend on the length of the manuscript, manual or assignment, the amount of editing or proofreading required and the type of manuscript. Non-fiction works take a lot more time as they often include fact checking, diagrams, tables and references which need to be checked as well.
I will ask for a sample of your work before quoting to ensure that you are charged fairly and according to the work required on your project. By having a sample I can also ask you questions directed to your work and your individual needs and goals for your work.