Angela Cote and Robert Bruski get into some of the general ideas around unit-level economics and how it relates to franchising a business. They talk about understanding that franchising isn't a passive income source, how various numbers on the profit and loss statement interact with each other, and they even touch a little bit on the normalization of financial statements.   

http://www.angelacote.com​ 

http://www.robertbruski.com​