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# PV Function [VBA]

Returns the Present Value of an investment resulting from a series of regular payments.

该功能或常量可通过以下语句启用：Option VBASupport 1，该语句需要放置在模块的每个可执行程序代码的前面。

## 语法：

    Pmt( Rate as Double, NPer as Double, Pmt as Double, [FV as Variant], [Due as Variant] )

## 返回值：

Double

## 参数：

Rate is the periodic interest rate.

NPer is the total number of periods, during which annuity is paid.

Pmt is the regular payment made per period.

FV (optional) is the future value of the loan / investment.

Due (optional) defines whether the payment is due at the beginning or the end of a period.

0 - the payment is due at the end of the period;

1 - the payment is due at the beginning of the period.

## 错误代码：

5 无效的过程调用

## 示例：

    REM ***** BASIC *****

    Option VBASupport 1

    Sub ExamplePV

    ' Calculate the present value of an annuity that pays $1,000 per month over 6 years.

    ' Interest is 10% per year and each payment is made at the end of the month.

    Dim pv1 As Double

    pv1 = PV( 0.1/12, 72, -1000 )

    print pv1 ' pv1 is calculated to be 53978,6654781073.

    End Sub

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