I have some used books and I would like to figure out their market value. Does anyone have any suggestions for how I should do that? Should I use prices on Amazon? If so, what formula should I use?
I have noticed bookstores in my area just use a simple formula of half the listed price for most of the cheaper books.
For books that were originally in the $100 range, there seems to be a bigger discount and no fixed formula. I have a mix of books, some textbooks or technical books and some regular.