Based on our CC level 8, the CC bonus is +5%, while "My XP Bonus" is +3%.
Two examples show how it's counted:
1) 3 holes without a pass:
11 strokes + 30 for the game = 41
3% of 41 is 1.2 (5% would be 2.05 - not applied)
41 + 1 bonus = 42 correctly added to my XPs.
Straight and simple.
2) one hole with a pass and the CDP bonus:
6 strokes + 6 game bonus + 880 CDP = 892
3% of 892 = 26.8, 5% of 892 = 44.6 (8% = 72.4)
The pop up windows shows 26 XPs bonus, "added to your CC" - oops, only 3%(!), !rounded down!
But, my XPs rise by 892 + 27 = 919, apparently the decimals are counted, too.
The CC XPs rise by 892 + 72, being 8% of the basic number. (This may be difficult to see, because each stroke of any (other) member would be added immediately.)
Pros and Cons:
+ With or without a pass, the individual XPs are always as shown, acc. to CC level.
+ The CC XPs are added from both numbers, here 3 + 5 = 8%.
+ Decimals are taken into account.
So far, so good.
- The display "adds ... XPs to your CC" is wrong, it shows only the individual XPs in whole numbers. No wonder that their accounting is deranged.