Excel查找分段價格 自定義函數

在整理價格表時，經常會碰到分量計價的價格查找，寫瞭如下的Excel自定義函數，有需要的可以使用。

=LookBreakPrice(O3,P3,K:M)
=LookBreakPrice(要查找的物料, 要查找的數量, 分段價格區域)

物料 分段數量 單價必須挨著放，且數量要連續，並且是降序

Function LookBreakPrice(Part As String, Qty As Double, Price)
   For i = 1 To Price.Rows.Count
       If Price.Cells(i, 1) = Part And Price.Cells(i, 1) = Price.Cells(i + 1, 1) Then
          If Price.Cells(i, 1) = Part And Price.Cells(i, 2) <= Qty And Price.Cells(i + 1, 2) > Qty Then
              LookBreakPrice = Price.Cells(i, 3)
              Exit For
          End If
       ElseIf Price.Cells(i, 1) = Part And Price.Cells(i, 1) <> Price.Cells(i + 1, 1) Then
          LookBreakPrice = Price.Cells(i, 3)
          Exit For
       End If
   Next i
End Function