For precise editing quotes for your manuscript of 30000 words.  Use the Book Editing Calculator located at the top right of the page.

Serial Service Cost
1 Development Editing, Line editing, Copyediting, and Proofreading $700/30,000 words
2 Line editing, Copyediting, and Proofreading $500/30,000 words
3 Copyediting and Proofreading $300/ 30,000 words
4 Proofreading $200/30,000 words