IRR Function [VBA]
Calculates the internal rate of return for an investment.
IRR(Values() as Double , [Guess as Variant])
Values(): 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
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.