Editing:
Perelandra College offers Development Editing, which provides suggestions concerning macro issues such as character and plot development, adding, cutting, etc; Copy Editing, in which the editor checks for grammatical usage, consistency, accuracy and other important micro issues; and Proofreading, making the final copy error free.
The cost for editing and proofreading is based upon an hourly charge of $50 per hour. Most manuscripts can be edited at around twenty (250 word) pages per hour, so a book of 60,000 words requires around 12 hours.
Although the total cost of editing will depend upon the length and condition of your manuscript, a reasonable estimate would be $3000 for a book 60,000 words and $250-$300 per additional 10,000 words.