Calculates the internal rate of return for an investment.
IRR(ValueArray as Double , [Guess as Variant]) As Double
ValueArray: The array of values of the cash-flow. The values represent cash flow values at regular intervals, at least one value must be negative (payments), and at least one value must be positive (income).
Guess: An initial estimate at what the IRR will be.
REM ***** BASIC ***** Option VBASupport 1 Sub ExampleIRR Dim cashFlow(0 to 3) As Double cashFlow(0) = -10000 cashFlow(1) = 3500 cashFlow(2) = 7600 cashFlow(3) = 1000 irrValue = IRR(cashFlow) * 100 Print irrValue ' returns 11.3321028236252 . The internal rate of return of the cash flow. End Sub