How to calculate return on your investments? 1.41K viewsAccounting0 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 AnswerActiveVotedNewestOldest 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: