I have a question regarding royalties. My publisher pays by value sales. Are there some publishers that pay a percentage of the cover price or do most of them sell according to value sales?
Value sales refers to the publisher's receipts, or the price at which they sell the book. It will be somewhere between 40 and 80% of the retail price. In this industry, the average discount is 40%.
Cover price refers to the suggested retail price printed on the cover of the book.
Some publishers pay based on cover price, others on wholesale. Some will pay cover on some books, but wholesale on others. Sometimes this is negotiable, sometimes not. Royalty percentages based on cover price are usually lower than percentages based on value/wholesale price.