It is mainly from personal experience, And I read it once on
Diabloii.net Merc Section, however I am too tired right now and can't seem to find it
Arreat Summit LinkAlso, coudln't find it on Arreat summit, however, I will do some simply math for you.
JUST purchased a Normal merc at level 75 (didn't know it was possible, but I took a
ScreeShot and as you can see in the game name, its a normal game (no difficulity listed)
1430 Life
173 str
139 dex
1061 Def
42 Res all in Hell
Now, on a level 5 Merc:
60 Life
50 Str
34 Dex
9 Def
10 Res all (in normal, -100% from hell penalty = -90%)
Now, Going from Diabloii.net:
All of that is added per level, so:
Str: 1.5*70 (level difference) = 105, 105+50 (base level 5 merc) is 155, 173 being the level 75 total str. (worse)
Dex: 1.5*70 = 105, 105+34 (base level 5 merc) is 139, 139 being the level 75 total dex. (Same)
Def: 9.5*70 = 665, 665+9 = 674, 1061 being the level 75 total Def. (way better to hire at higher level)
Res: 2*70 (base normal res) = 140, subtract the 100% hell penalty, you have 40 + 10 = 50 Res in hell. (better to hire lower level)
Can't calc the life, as there is no listed changing mod, so it varies.
Well, I have been misleading my readers
To hire at a higher level is your best bet by my calc's.