Because the Kindle can use different fonts and type sizes, the page numbers in an ebook may not correspond to the ones in a physical copy. Instead, you can show your progress based on how long it will take you to finish the current chapter or the book, or you can see a "Location" based on your absolute position in the text. Check the Settings menu or Aa window for "Reading Progress," or tap the lower-left corner of the screen while the book is open.