If I’ve skipped to Act II as soon as I can, but I come back eventually and play with a level 3 player, the mobs are very easy.
Are they providing me with less XP per mob then I would’ve achieved if I were level 3? Are they providing my friend with less XP then if he were playing with another level 3 player?
Answer
Presumably, the reason they’re easy is because you’ve outleveled them. Monsters below your level provide less experience, as seen in the table below.
Level difference is calculated as (mob level) – (character level).
Level difference Multiplier
+3 or more 125%
+2 120%
+1 115%
0 100%
-1 90%
-2 80%
-3 70%
-4 60%
-5 45%
-6 30%
-7 15%
-8 5%
-9 1%
-10 or below 0%
Bonus XP/kill from gear is only applied if the monster is at most 5 levels below you.
Attribution
Source : Link , Question Author : Luke Shaheen , Answer Author : Michael Madsen