Once I've had a chance to see your document and discuss your needs, I will give you a more detailed quote. This will be on the basis of either an hourly rate, an amount per 1,000 words, or a flat fee for the project, as agreed between us.
If you'd like a quick, 'no-strings' quote, just email me. Let me know the type of document you need editing and its word count. I will get back to you quickly with an approximate figure so you can decide whether you'd like to proceed.