There is no single number that applies to every book.
Click totals can vary based on genre, cover design, price, retailer availability, reviews, series position, and how strongly the book appeals to readers who receive the recommendation.
Some genres have larger audiences than others, and even two books in the same genre can perform very differently.
The Fussy Librarian focuses on matching books with readers who have expressed interest in relevant genres rather than promising a specific number of clicks. Your promotion report can help you evaluate how readers responded to your individual book.