Multifamily Cashflow Question

[Duncan Forbes]

Hello All! 

I was wondering if you could help answer this question...or guide me to a forum that can help me....as I cannot find it on your website.

I am planning on buying a Multifamily 2 unit house as an investment. One floor will be mine, and the other will be rented out. I'm hoping to get it to a CASH FLOW Positive, but HOW do I get those numbers / what to look out for in the Bigger pockets Calculators?

Will it be under Rentals?
Under the BRRR Strategy?

Any and all help is greatly appreciated!