Firstly it's an STR business. Airbnb is a marketing channel. @Caleb253
you estimate likely gross profit by carrying out your market research and putting together a profit and loss budget to give you gross and net profit for a particular property.
of course there's lots of variables that can affect profitability such as weather, increased competition, introduction of STR restrictions.
as someone who says their background is in real estate I'm sure you know how not to overpay on a property .