Durability affects the calculated value of equipment and repair kits in different ways. Equipment distinguishes permanent loss of maximum durability from current wear; the repair-kit expression squares the remaining fraction. These are value calculations, not drop chances.
Equipment value as durability falls
Equipment keeps track of original maximum, current maximum and remaining durability.
Equipment depreciationVALUE-01
safe_original_max = max(original_max, 1)
base = initial_value × current_max ÷ safe_original_max
depreciation = 0.10 × initial_value × (1 − current_durability ÷ safe_original_max)
output = max(0.10 × initial_value, base − depreciation)
The denominator uses at least 1 original maximum durability. The calculation applies both a current-maximum-durability ratio and a depreciation term based on current remaining durability. A 10%-of-initial-value floor is applied at the end.
Repair-kit value
The repair-kit expression instead uses a squared remaining-durability ratio.
Repair-kit remaining valueVALUE-02
ratio = max(0, remaining_durability ÷ max(maximum_durability, 1))
output = initial_value × ratio²
The ratio is clamped below at zero, not above at one. The ordinary example assumes remaining durability does not exceed maximum durability.
Worked examples
Equipment starting at value 100, original maximum durability 100, current maximum 80 and remaining durability 40 gives base 80 and depreciation 6: output 74. A repair kit starting at value 100 with 50/100 durability gives 25, not 50.
The definitions do not establish when a displayed loot value is recalculated, whether another system rounds it, or whether market/vendor prices use it. Neither is a reward selection probability.