Anybody know the leeching formula for EXP at LHC/LKC or SH?

The exp is actually cut into 60 / 40 portions for damaged-based sharing and level-based sharing, respectively. I.e. 60% of the EXP goes to people who kill actively, 40% is distributed among party leechers. We call it the 80-20 formula because in a party of 2, the killer gets roughly 80% of the EXP (60% + 40%/2) and the leecher gets roughly 20%.

Always confused me cause both had 80-20 and 40-60 splits, depending how you look at it.

One way: 80% to party, 20% to damage - an equal level party gets 40% (leecher) and 60% (killer).
Other way: 40% to party, 60% to damage - an equal level party gets 20% (leecher) and 80% (killer).

I'm fairly sure we receive the first of these now, and used to receive the second, but haven't actually checked.