Room number and points (a word, in tenths of a percent) for 8D19, which adds them to the score the first time Bilbo enters the room. Terminated by $FF.

Room	Points
4 lonelands	2.5%
7 trolls' cave	5%
11 narrow place	2.5%
22 Beorn's house	2.5%
13 goblins' dungeon	7.5%
65 dark stuffy passage	5%
27 smothering forest	2.5%
28 levelled elvish clearing	2.5%
31 dark dungeon	5%
34 long lake	10%
38 dale valley	2.5%
42 side door	2.5%
43 smooth straight passage	5%
41 lower halls	20%

Together they are worth 75%, and nothing else in the game adds to the score, so 75.0% is the most anyone can achieve. Being captured and thrown into a dungeon counts as a visit, so both dungeons score.