Before reading this article I strongly suggest you read both my recent article Gaining Traction in the Amazon Ebook Marketplace and Amazon Best Practices. You will need the knowledge described in both of them to really take advantage of the information given here to enhance your royalties.
As noted in my latest article, Gaining Traction in the Amazon Ebook Marketplace, regarding Amazon’s internal recommendation system, the more books (units) you sell, the more you are recommended out into the queue and the more books you tend to sell. The contrary is also true. The fewer books (units) you sell, the less you will be put into the recommendation queue and the less you will sell, until you settle somewhere in the deep 100,000s or lower.
The other important fact regarding Amazon’s internal queue is that it appears to be “price blind.” It rewards you for total units sold, not for the royalties generated by those sales. Therefore you could sell 1,000 copies at 99, or 1,000 copies at $9.99, and your book would go into the internal recommendation queue at the same rate. It is also pretty obvious, with the bargain-shopping mentality of Amazon customers, that you tend to sell far more copies at 99 than $9.99. It so much easier to sell 1,000 units at 99.