The formatting geek in me wants to ask if that's 6x9 size pages, or letter. Because my 5.5x8.5 book is 121k and 390 pages (31 chapters, 12pt Garamond, 1.15 line spacing) yet when it was 117k it still wasn't that close to 300 as yours. 😭 (If yours is book size, it'll be so much cheaper to print. 😭)