If you don't play Hunter or Titan nor do Trials, I highly doubt you are 85% in the book since that equals 3 of the 12 pages or 25%.
English
-
Completion is screwed up, check my progress then. I have all pages done except Crucible, Strikes, Hunter, Titan, and Trials of Osiris. You can skip like 3 pages and have 100 percent in the book. And I have Crucible and Strikes half done.