weird price for green crack+viagra recipe

[theJFK]

i was selling the crack+viagra recipe through a dealer, and it was selling w no problem. but i decided to sell on my own and i faced this issue. people constantly trying to buy only 1 weed and they givin me the price of -(2,147,483,648). some woman wanted to buy 3 and i was able to sell with no problem

[Tagger]

It's an integer/overflow bug.
Seen a few other threads where people have this issue.

Should be a fairly easy fix for the developer, if he/she is made aware (which I'm sure they've been).