Design: Kimberley Duval - Walmart

Low Trainers: Mach-Na, Cheydinhal; Foroch, Gottshaw Inn northwest of Kvatch
Medium Trainers: Seed-Neeus, Northern Goods & Trade in Chorrol; Margarte, Leyawiin
High Trainer: Palonirya, Divine Elegance shop in Imperial Market District
The Mercantile ability affects the price that you get from vendors when you attempt to either sell
to or buy from them. The higher your Mercantile score, the better the prices that you'll be able to
negotiate.
In order to increase your Mercantile score, you'll have to use the Haggle mechanic while in the
shopkeeper interface. When you haggle, you'll be able to continually attempt to rachet up your
selling price for items sold to the merchant. Each time you sell an item at above market price,
you'll gain a small amount to your Mercantile score. It's possible to attempt to sell an item for too
much cash, though, in which case the merchant will reject your offer and become slightly less
favorable to your future offers.
The thing you want to do here is grab a huge stack of something cheap of disposable and attempt
to sell them one by one. Arrows are perfect for this, since you'll often find a bunch of them in
dungeon crawls, and they don't weigh very much. When you have a large amount of them, find a
merchant and start selling them one by one, increasing your haggling percentage by two or three
points after each sale. When they reject your first offer, knock your percentage down by two
points and start selling selling selling!
Each time you sell an individual item, your Mercantile skill will gain a small increase. Thus, the
best way to get big increases in your Mercantile skill are to get huge amounts of arrows and sell
them one by one. (Selling them as one stack counts as one transaction for Mercantilism's
purposes.) It's laborious, sure, but it works. Since iron arrows are dirt cheap, you can sell a huge
stack of them, buy them back, then repeat the process as often as you like to increase your
Mercantile score.
Mastery Level Ability
Novice Value of sold items is affected by the condition of the item.
Apprentice Condition no longer affects value of items.
Journeyman Can buy and sell any kind of item to any vendor.
Expert
Can invest in a shop, permanently raising that vendor's cash amount by 500
gold.
Master All shops in the world increase their maximum purchase price by 500 gold.
Security
Relevant Attribute: Agility
Low Trainers: Malintus Ancrus, Chorrol; Samuel Bantien, Talos Plaza District
Medium Trainers: Mandil, Othrelos' house in Elven Gardens District; Dro'Shanji, Bravil
High Trainer: J'baana, imprisoned in Imperial Prison District