party bonus on loot drop

Hi, the info from wiki pages seem conflicting. can some give definite info on how party bonus affect party loot drop? My mf culler char seems to get more rare loot soloing than in a 3 ppl party.

for the purpose of calculation, say
p1: 50 iiq, 400 iir;
p2: 0 iiq, 0 iir;
p3: 0 iiq, 0 iir;

I somehow read partying no longer give iiq bonus, how come it's not reflect on wikis?

It should be +10iiq and +40iiq per number of player after the 1st. This is additive with culler MF. The wiki is outdated. This quantity of item is then divided by total of number of players for each.

In your case, each member on ave has 56.6% of item compare to solo and 480iir compare to solo non mf, assuming the culler culls everything that is.