Well it should, how would it take the same amount of mats realistically speaking of course, a bit of frayed stitching compared to a hole compared to a tear.
WoW (pretty much every other MMO) bases its repair the on amount of damage and it works, obviously I'm not asking for player repairs to work this way but NPC repairs should work on the percentage of damage = cost to repair.
This will be even more important with the suggested death penalty to durability.
