Experience

Based on findings by Chexmix in the forum, we get the following table

Players	Bonus
1	0%
2	75%
3	150%
4	225%
5	275%
6	300%
7	325%
8	350%

The bonus above is measured at the time the monster is spawned.
This is not necessarily the number of players at the time it was killed.
Thanks to Ronin Spoilspot for verifying it in both Realm and TCP/IP games.

Arreat Summit has a page that documents Experience.
On that page, the 35% extra bonus was mentioned.
That bonus is per player in the party.

Finally calculations on this page also uses some classic D2 information from Jarulf's findings. (Particularly for the steps where monsters are between 6-9 levels of a character)

Calculations used here will be based on that page, and classic D2 information from Jarulf's findings.

Based on version e1.08

Party information

Player Pct. of Base Exp. Experience

%

%

%

%

%

%

%

%

Difficulty and Monster information

Number of players in game
when monster is spawned

Difficulty

Act

Monster

Monster Level

Monster Base Exp

For the purpose of calculating experience, specify the character level only if it is partied AND in the same zone. If a player is not partied OR not in the same zone, specify 'Non-sharing'.