When a game is completed, a panel display le number of XP for you and the CC if you have a pass.
This information is wrong, the panel display the normal value of XP without the personnal and CC bonus.
Suppose you have 2% personnal XP bonus and he CC have 5 %.
You end a game for 919 XP displayed on final screen. The bonus are applied without information.
So your Personnal XP increase of the bonus 2% -> 919*1.02= 937 real XP for you
If you dont use a pass le CC get nothing, if you use one (ie :5%) the CC get your real XP scored (937) + the bonus, so ->937*1.05= 984 for the CC.
That i see on a game normally scored 919 (display), my contribution to CC was 9,993 before playing and 10,977 after.
10,977-9,993= 984. QED