Hello, I know this is a million years late heh.

I'm not sure, because here is what the FCS tells us:
loot price mult: the price player gets for selling regular ite4s as loot (stolen, or non-traded items)
loot price mult GEAR: the price player gets for selling armour weapons as loot

BUT there are separate entries called "loot price mult player armour" and "loot price mult player weapons which says: "price multiplier for the player selling armour / weapons he crafted himself."

so this changes EVERY loot? or just weapons and armor?