You can expect to pay anywhere between $500 to $2,000 for a professional book cover design, and about $8 to $10 a page for a typesetter to layout your book.
Every serious self-publisher needs a good editor to put out a quality product. The cost for a book editor will vary from $5 to as much as $15 per page, depending on how much work the manuscript needs (see Resources).
It's best to start off self-publishing about 500 to 2,000 books. The cost to print 500 books will be about $2,000, depending on the printer you use--the more books you print, the lower the per book cost.
To properly advertise a self-published book, it's best to have an initial advertising budget of at least $2,500 to $5,000. You need this for ads, sending out books for review, press releases and other advertising methods (see Resources).
Many self-publishers choose to publish using print on demand (POD) because the upfront investment is very low. The upfront outlay for book printing is eliminated, but the per book charge for POD book printing is generally higher.