Damage Resist

Diablo II	Notation	Basic	Class	Skill	Item	Ally	Quest	Area	Monster	Tale

Damage Resist % or Damage Reduced by % applies to any physical damage remaining after Damage Reduced.
Does not apply to Sacrifice damage to self. [1]
DR 50% ceiling normally applies to player and mercenary, while DR -100% floor applies to all units. Ceiling does not apply to Crushing Blow: DR >99% results in immunity to Crushing Blow.
Casting Amplify Damage (DR -100%) or Decrepify (DR -50%) will reduce DR %, although DR <0% will not increase Crushing Blow damage (both are still fully effective when cast on a player or mercenary with DR >99%). Percentage is reduced to 1/5 when monster is Immune to Physical (DR >99%).
Sanctuary may normally pierce DR of Undead, but this does not apply to Crushing Blow: Immune to Physical Undead will remain immune to Crushing Blow. [2] [3]

Skill

Value	Source	Min Rlvl	Ladder
(slvl)%	Fade	18	No

Value	Source	Min Rlvl	Ladder
8%	Ber Rune in helm socket	63	No
10%	Rockstopper Sallet	31	No
10%	Harlequin Crest Shako	62	No
(10-15)%	Crown of Ages Corona	82	No
(15-20)%	Vampire Gaze Grim Helm	41	No

Value	Source	Min Rlvl	Ladder
8%	Ber Rune in body armor socket	63	No
8%	Chains of Honor body armor	63	No
8%	Enigma body armor	65	No
10%	Rockfleece Field Plate	28	No
(15-25)%	Leviathan Kraken Shell	65	Yes
25%	Trang-Oul's Scales Chaos Armor Full	65	No
30%	Shaftstop Mesh Armor	38	No

Value	Source	Min Rlvl	Ladder
10%	Crainte Vomir Espandon	42	No

Value	Source	Min Rlvl	Ladder
8%	Ber Rune in shield socket	63	No
(15-20)%	Spike Thorn Blade Barrier	70	No
35%	Stormshield Monarch	73	No

Value	Source	Min Rlvl	Ladder
(10-15)%	String of Ears Demonhide Sash	29	No
(10-15)%	Verdungo's Hearty Cord Mithril Coil	63	No
20%	Immortal King's Detail War Belt 5 items	76	No

Value	Source	Min Rlvl	Ladder
30	Natalya's Odium Full	79	No