[Pre-BB] MapleStory Formula Compilation

The formulas include 'party bonus', but I don't think it says anywhere what the party bonus actually is (maybe I'm blind, but I don't see it either) . Is it the 1.1 that Fiel talks about?
And how does holy symbol link into this. There is a lot of confusion about what effect holy symbol has in various situations. Perhaps that could be included in this thread. And does the HS multiplier replace the 'party bonus' multiplier, or does it multiply the multiplier?

HS multiplies another 1.5 (at max level) regardless of number of party members (even 1). The only restricting rule is: you can never get more than 110% of a monsters total exp in any situation.