The amount of markup that Amazon adds to ebooks can vary. Amazon generally takes a cut of around 30-35% of the list price for each ebook sold through its Kindle Store. This means that if an ebook is priced at $10, Amazon might take a cut of around $3-$3.50. However, this percentage can vary depending on the specific terms and conditions agreed upon between Amazon and the publisher or author.
In some cases, Amazon may also offer discounts on ebooks, which can result in a lower markup percentage. Additionally, some publishers may choose to sell their ebooks directly through Amazon at a lower price, while still taking a smaller cut of the sale price.
It's important to note that the markup on ebooks is generally lower than the markup on physical books, due to the lower production and distribution costs associated with digital products. However, the exact amount of markup can vary depending on a number of factors, including the publisher or author's pricing strategy, the specific terms of the agreement with Amazon, and market conditions.