Bookseller Ratings are based on your completion rate only which is defined as orders that have been completed without cancellation or return/refund. This is generally calculated in the following manner: Completion Rate = (Total Number of Order Items – Unfulfilled Order Items – Returned Order Items) / Total Number of Order Items The Completion Rate Percentage is shown as a percentage. So, for example if you had a total of 75 orders, cancelled three of them and had two returns, your completion rate would be 93%. (75 - 3 - 2) / 75 = 93% The completion rate percentages are translated into a 5-star rating system.
Displayed Rating and Ratings History:
The star rating shown on the search results is based on a bookseller's 6 month completion rate.
A more detailed Ratings History for the bookseller (previous 1, 3, 6 and 12 month ratings.) is available through the Book Details page.
1. From the search results click on the title of the book you are interested in.
2. Click on the "Bookseller & Payment Information" tab.
3. Click on the "Ratings History" link.
4. A small window pops up displaying the ratings history for the previous 1, 3, 6 and 12 months.
Updates to Bookseller Ratings: The star ratings for each time period are updated at the beginning and middle of every month to show the most recent order history. New Booksellers:
For new booksellers a default 4 star rating is granted until your first 4 orders are processed. Once four or more orders have been established, the star rating will then be based on the calculated completion rate as detailed above.





