The number of sales of a novel depended on many factors, including the quality of the novel, the needs of readers, market trends, and so on. Generally speaking, the publishing society paid attention to the popularity of the novel in order to determine whether it would be listed as a bestseller. The number of bestsellers wasn't a fixed number. It depended on the market demand and readers 'purchasing behavior. Some novels may become bestsellers within a certain period of time while others may never become bestsellers. The publishing houses would also adjust their publishing plans based on market feedback to ensure that their novels met the needs and interests of readers. Therefore, it would take some time and effort for a novel to become a bestseller. At the same time, it would also require constant innovation and adjustment from the publishing house and the market.