First time homebuyer, living in one side of duplex - how to calculate a good deal?

[Talya Reynolds]

Hey y'all, thanks for your time on this post! I'm looking into investing in my first duplex. What's the best way to calculate a good investment when you're living on one side and renting the other? Eventually, I would move out but still want to vet the opportunity given rates, costs of housing these days, and the like.

Any calculation advice besides the 2% and 50%?