Definition. This function calculates a value of the dynamic investment calculation: The internal interest rate that turns the cash value of all disbursements and deposits in connection with an investment into zero.
Values (required) The (actual and/or expected) surpluses from disbursements and deposits, arranged without gaps in a column. Each value represents a period (usually one year) in ascending order and without gaps. Negative surpluses have a minus sign.
Guess (optional) For mathematical reasons, a calculation of the internal interest rate for more than two periods can only be approximate, and therefore this approximation calculation can lead to different and sometimes nonsensical results (such ...