ROI on a condo i moved out of, but now rent

[Kim Leduff]

Hi all,

how do i calculate the ROI on a condo I bought in 2010 but I recently moved out of and now rent? its cashflowing $400 monthly. but what should be the denominator in my ROI calc? the down-payment i made 10 years ago plus any expenses/repairs ive made since then? i know my annual return but Im not sure if i should be including 10 years worth of expenses as the denominator.

Any tips would be much appreciated.

Best,

Kim