I'm guessing since you have two different formulas in the last two rows, you want both rows to go down one.
Try
Code:
Sub MoveDown()
Dim LastRow As Long
LastRow = Sheets("Data").Range("B" & Rows.Count).End(xlUp).Row
Sheets("Data").Range("B" & LastRow - 1).Resize(2, 5).Copy _
Destination:=Sheets("Data").Range("B" & LastRow)
End Sub