profitability formula

[Nuhan Demirkan]

Hello, I manage my own properties and they all have various cash on cash return rates and equity. I am thinking about developing a formula that considers the annual cash flow, cash invested, equity and management hours to come up with a factor or a coefficient that could be universally applied to the existing and future rentals. Has anybody seen or developed something similar?

[Nuhan Demirkan]

Thanks, that is an option. I am putting together the base line thoughts to arrive at the formula. I wanted to see if anybody had developed the idea.

By the way I bought your books. I refer to them frequently. 

Thanks for writing them.