Real Estate Multiples

Hi, I had some questions regarding REPE Multiples if someone can help.. They make sense when I model the CF on excel but not on paper 

So if I buy a property 100 and have 60CF and Exit for 100: 

Then my RE MoM is 60/100 + 1 = 1.6x right?

and then if I add 50% LTV (no interest)

my MoM would be 60/50 +1 = 2.2x

If someone could confirm this is how you would calculate it on paper, so (CF + Exit - PP / Equity invested) + 1  

And maybe explain why in REPE we add +1 to the Equity Multiple ? 

Thanks