Lethal damage

Flat Damage ignoring target's DT/DR/DRD, Only Defense against Flat Damage is Lethal Protection

Sources

• +1 per Intelligence
• +25% of damage if you have 20 Luck(50% if hit is critical)
• +15 for Living Anatomy
• +10 for Liver
• +50% of fire bonus in Pyro! synergy
• +5 for Fast Shot
• +2 for Heavy Handed (melee only)
• +10 for War Event extra stat
• +7 per Slayer Weapon Perk
• +1 for Soldier
• +1 for Small Ranged Damage (Only in PvE)
• +5 per Aggression Leader buffs
• -2 per Agility
• +50 for Bonus Bullets Damage (Only in PvE)
• +25% for Weapon Handling
• +100% for Wrecker
• +1 for Wrecker's Strength (+5 for Gain Strength )

Defensive

• -x% for Lethal Protection (x == target DR)

Cured( Normal)

• 1: 75%
• 2: 85%
• 3: 95%
• 4: 100%
• 5: 100%
• 6: 100%

Laser Reflector ( Laser )

• 1: 90%
• 2: 100%
• 3: 100%
• 4: 100%
• 5: 100%
• 6: 100%

Anty-Termal System( Fire and Plasma )

• 1: 50%
• 2: 66%
• 3: 75%
• 4: 80%
• 5: 85%
• 6: 90%

Shock Protection ( Electro and Explode )

• 1: 20%
• 2: 30%
• 3: 40%
• 4: 50%
• 5: 66%
• 6: 75%

Sum of armor perks + Lethal Protection is final defesive capped at 100%
if target have 20 Luck Defensives are lower by 25%, so cap is 75% with 20 luck