First number = players in game when mobs spawned
2nd number = players within 53.33 yards when mobs spawned
% = NoDrop chance for regular mobs
p1/1, p2/1 = 62.50%
p2/2, p3/1, p3/2, p4/1 = 38.78%
p3/3, p4/2, p4/3, p5/1, p5/2, p6/1 = 24.05%
p4/4, p5/3, p5/4, p6/2, p6/3, p7/1, p7/2, p8/1 = 14.29%
p5/5, p6/4, p6/5, p7/3, p7/4, p8/2, p8/3 = 9.09%
p6/6, p7/5, p7/6, p8/4, p8/5 = 4.76%
p7/7, p8/6, p8/7 = 3.23%
p8/8 = 1.64%
The NoDrop% is not affecting elites (with a few exceptions for some super uniques with modified drop tables) but it has a small incidence on bosses and heralds. Same px/y breakpoints as above.
no they dont need to be within 53 yards
just the same named area for better nodrop