Dear Mr. Bremion Aktosul,
I am afraid that the potions will cost a lot more to make that I once thought. I have increased the price of each potion of seeing and each potion of invisibility to 100 gold.
I apologize for this unexpected change in our deal, but material components are very hard to come by. My supplier sells me raw materials at eight times the cost it would take to make on the surface.
I have given you two potions of invisibility. I still have to brew 8 potions of invisibility and 10 potions of seeing.
You have given me 300 gold. You still have to give me 1700 gold (not 1500 gold).
Argent Gish Mercenary Wizard
OOC: Nothing personal, Bremion, but I forgot to take into account the cost of the potion bottle. Potion bottles are EXPENSIVE in Sanctuary, at 8 gold each! I thought they cost only 1 gold each like in Shadows of Undrentide and Hordes of the Underdark.