Porthos, beneath the "stat block" you write "56 [or some other number] pages to go until Book 6 is equal to the size of On the Origin of PCs."

Can you please explain how that number 56 is calculated? I'm not seeing it. At the moment, Book 6 has 16 "pages, " while OtOOPCs has 122.5. This suggests 122.6 - 16 = 106.5 pages to go, yes?