NOTE: these rates are not set in stone and are only an average for this editor. The actual rate applicable to your document will depend on the depth of the edit, the quality of the writing, the topic matter, the proximity of the deadline, the length of the document and several other factors.
I have six years of experience writing and performing editing of various written material. I have completed proposals, reports, academica papers, study guides, educational and training material, articles, brochure and newsletter content, sales letters.