I own a Pokémon market(dropped)

Trainer A: “What ! You sell a potion for 3000 $. The shop next sell only for 200$.” Trainer B :” Why Pokeballs in this shop so expensive?” Trainer C:” What this stone can evolve my lucario?” I just slept and became the boss of Pokemon market when I woke up. I don’t own pokemon. First time writing English is not my first language. I use some ideas of other pokemon fanfic or novel related with shop management