Assuming the equipment is worthy, it should be worth the average cost it takes to achieve Jug5. If the equipment is not worthy, it may not recoup the invested cost. If you got Jug5 on a superior armor it wouldn't be worth anything. An equipment is worthy when the buyer believes he would have been willing to achieve Jug5 on it himself.
QUOTE(BlueWaterSplash @ Feb 16 2019, 20:56)

I checked a lot of item world logs and the expected cost of But+Fat=9 is about 1.3m credits, and the expected cost of Jug5+Any5 is also 1.3m credits. Plain Jug5+Any+Any is much easier, I didn't check how much but probably 400k~600k.
As for imperfect things like Jug4, or But+Fat=8, they are worthless if the equipment is too good for that, as well as being valued less if the equipment is too poor for that. Item worlds should fit the value of the equipment to achieve full value.
Jug5+Cap5 or Jug5+Holy5 would be worth even higher, but most people don't think it's worth it, so in all likelihood the value won't exceed the 1.3m of Jug5+Any5 (meaning you insist on 2 potencies but don't care what the second one is).