I guess one ca run some test and check. For instance ATG with different XP value fiirng on the same tanks and the same ATg firing on tank with different XP value could provide some idea how it being calculated. We all ready know that shot the bounce do not count.
I mean yes you could technically test it and probably even come up with all the information.
My point was more that even if you knew all the information, the information is so convoluted that it is hard to judge what to make of it. Especially if they do not count munition abilities and weapon upgrades into costs (I assume they do not by gut feeling).
And even this very last piece of potential information is tossed right our the window for USF vehicles that reset every time they dismount. The whole table is pretty much useless.