What determines the price of the item?

[SpookyFX]

So I have TWO outer ware items. One I have upgraded a lot and put MAX mods on and it says it is worth 2000 EDs. The other I just took of some dead guy and it is the same outer jacket type (but a military item were as the one I have is corp) has the SAME number of mod slots but NO mods and both are ledaganary (both not iconic) but the item I found is worth TWICE as much money?

I was trying to sell it with other items and I got a message pop up that asked if I was sure I wanted to sell it. I assumed that it was because it was legendary but then I notice how much more money it was worth.

 

[Shoklen]

For weapons it seems to be tied to their levels as the major factor coupled with their tier/quality (not damage or usefulness).

It's a bit of a mess as you can sell a Legendary Deamon for 700 Eddies, but then the vendor wants well over 100K for the same item.... Same with why most trash items are worth 3 but a dozen or so are worth 750... Makes no sense.