Listing on the Exchange costs 20 Solari a day plus a cut of your asking price: 2% for the first day and 1% for each day after, for however many days you list. Those are Funcom's own figures, and they're why a short listing at a sharp price beats a long one.
The Exchange lives in the CHOAM Exchange in Arrakeen and Harko Village, and it's shared by every Sietch on your World. Fees and limits below are from Funcom's help centre and patch notes, checked 9 October.
A week-long listing costs about 8% of your asking price, and two weeks about 15%. That's the whole case for pricing to sell fast: pick the shortest duration that will move the item, and price it so it does.
