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# IRR Function [VBA]

Calculates the internal rate of return for an investment.

This constant, function or object is enabled with the statement Option VBASupport 1 placed before the executable program code in a module.

### Syntax:

    IRR(ValueArray as Double , [Guess as Variant]) As Double

### Return value:

Double

### Parameters:

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.

### Error codes:

5 Neplatné volanie procedúry

### Example:

    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

Related Topics

IRR function in CALC

VBA financial functions