The remuneration for writing a book depends on many factors, including the quality of the book, market demand, the price set by the publishing company, and the popularity of the author. Generally speaking, the higher the quality of the book, the higher the remuneration. In addition, market demand was also an important factor that affected royalties. If the demand for the book was high, the author's royalties would increase accordingly. The price of the book was another factor that affected the author's royalties. Usually, the book's royalties were determined based on the price of the book. The exact amount of royalties also depended on the negotiations between the author and the publishing company. Sometimes authors may get a lower fee because the book is in higher demand or the book is in lower demand. Therefore, the question of how much money one could earn from writing a book was a relatively complicated one that required a comprehensive consideration of many factors.