It should show 100%.
Either you've ticked the wrong realism options, or you have a defective installation of NYGM 2.2. It ought to be installed over a clean installation of basic SH3 and patch 1.4b. (Unless you are using the 2.2 upgrade, in which case it ought to be installed over SH3/1.4b/NYGM 2.0.)
We've noticed that virtually all complaints about problems with NYGM are due to the presence of other mods, either before or after NYGM is installed. The NYGM team can hardly be held responsible for that!
Stiebler.
NYGM Tonnage War Mod - more than a mod; it's an experience!