Page numbers have been discussed ad naseum in numerous threads spread around this forum. Might I suggest you review this thread:
https://www.mobileread.com/forums/sho...t=page+numbers
or this one:
https://www.mobileread.com/forums/sho...t=page+numbers
You can set an option to see a progress bar at the bottom of the page that will give you a relative view on where your are in the book.