is your rank determined by the number of reads? or by reader retention? or a combo of things? because every time i check on my story it jumps around a lot, sometimes itll be close to the top 1,000 in the genre and sometimes it will be like 30,000. I updated it today and its around 49,000. if the rank due to reader retention, is it lower now because the new chapters havent been read so it brought the retention down? i just want to understand because the number seems pretty arbitrary when it jumps around so much.
edit: maybe im reading it wrong? i was paying attention to the second number