Everyone is furious (or at least a bit puzzled) about the 5 BrC = a night at the inn, 3 BrC = a corndog. 🤣 I also wanted to complain about it.
I guess the 5 bronze coins should have been silver coins instead and the author messed up. If we go with 1 silver coin = 10$ = 10€ = 1000¥, then 50 Bucks is reasonable and maybe even a bit too expensive for a little dirty storeroom, that happens to have a window and a bed.
btw, in fantasy settings most of the times I assume:
1GoldC = 10SilverC = 100Copper/BronzeC = 1000 IronC with 1 Copper/Bronze coin = 1$ = 1€ = 100¥
At least when nothing else is given. And most of the times prices in stories become reasonable with it.