The idea of time value of money (TVM) has fascinated finance thinkers since antiquity. A story from the Jewish Talmud (c. 500 CE) illustrates it vividly: a lender falsely claimed a loan term was 30 ...

How to calculate return on investment (ROI), the money an investment made relative to its cost, in Microsoft Excel.

Knowing how to calculate your portfolio's returns is essential to becoming a savvier investor. Learn the basic principles here to correctly calculate your investment portfolio returns.