Jess walked back to the marketplace, realizing that she didn't need the tonic that was lingering in her pack.
"Here you go, Portia. I'd like 7 gold for this tonic, please."
"'Course, sweety. Here you go! Would you like anything else?"
"Yes, I think I'll sell two of my fire bombs for 10 gold, if you'd like them."
"Okie dokie, here you go. Can I interest you in a nostrum or smelling salts?"
"You know what, sure, I'll take a vial of smelling salts. I'd also like two remedies, while I'm at it."
Jess handed over 40 gold for the goods, and left with 61 gold in her pouch. (84+7=91, 91+10=101, 101-20= 81, 81-10=71, 71-10=61.)