25 Jul 2019 The annualized ROI formula is a bit more complicated. Here's what it looks like. Annualized ROI = (current value / cost) (1/years) – 1. Using our 9 Oct 2019 What's the difference between internal rate of return (IRR) and cash-on-cash return? Find out how to calculate your return on real estate and learn which calculation is better for you. There are COC return formula example.