Not appraise char, and during NCW i payed 1 gp for a bottle, but from yesterday it is 5-6 gp to me as well.
Not sure what causes it. Crash or removal of NCW, or something with the new changes?
Also i think with appraise there is a certain amount of money you can get for an item, and the merchant can ask, and 500% raise even with high or very bad appraise not possible.