Financial 模块 (Visual Basic)
更新：2007 年 11 月
Financial 模块包含用于执行财务操作的过程。
备注
此模块支持执行财务计算（如折旧、现值及未来值、利率、回报率和付款）的 Visual Basic 运行时库成员。
成员
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示例
本示例使用 Rate 函数计算一笔贷款的利率，假设前提包括：付款总期数 (TotPmts)，还贷额 (Payment)，贷款的现值或本金 (PVal)，贷款的未来值 (FVal)，一个用于指示付款截止时间是在付款周期开始还是末尾的数字 (PayType)，以及预期利率的近似值 (Guess)。
Sub TestRate()
Dim PVal, Payment, TotPmts, APR As Double
Dim PayType As DueDate
' Define percentage format.
Dim Fmt As String = "##0.00"
Dim Response As MsgBoxResult
' Usually 0 for a loan.
Dim FVal As Double = 0
' Guess of 10 percent.
Dim Guess As Double = 0.1
PVal = CDbl(InputBox("How much did you borrow?"))
Payment = CDbl(InputBox("What's your monthly payment?"))
TotPmts = CDbl(InputBox("How many monthly payments do you have to make?"))
Response = MsgBox("Do you make payments at the end of the month?", MsgBoxStyle.YesNo)
If Response = MsgBoxResult.No Then
PayType = DueDate.BegOfPeriod
Else
PayType = DueDate.EndOfPeriod
End If
APR = (Rate(TotPmts, -Payment, PVal, FVal, PayType, Guess) * 12) * 100
MsgBox("Your interest rate is " & Format(CInt(APR), Fmt) & " percent.")
End Sub