How to calculate return on your investments? 1.10K viewsAccounting 0 Halls 0 Comments What is the ratio to calculate the return on investments and what kind of balances should I get from the balance sheet to calculate it? 1 Answer ActiveVotedNewestOldest 0 Warren Posted 0 Comments Return on Investment (ROI) can be calculated as follows: ROI=Net Investment Gain/Cost of Investment Where the net investment gains is Gain-Cost of Investment Register or Login Search for: