How does the bookstore determine the price thats offered?
In a word – need. If we need a book to sell on our own shelves, we offer half of the selling price (try getting that deal on those shoes you bought last August). If we can’t use the book here (either we already have all we need, or no professor is using that book next semester (we offer whatever or national wholesaler will give us for the book. Nationwide demand for a book determines what they offer.