Clear Cell range upon Changing data in difference Range

I am currently using the below code to clear the data in cells K14:O48 if data in A14:B48 changes.

The problem is, if i change data in cells NOT in the A14:B48 range, Data in K:O clears as well. How do I stop that from happening?

Also, is there a way to change the code so that ONLY the row with changed numbers in A and B is cleared in k:o?

(so if i only change info in cell A16, then k16:o16 clears, but the rest remains)

Private Sub Worksheet_Calculate()
  Dim c As Range
    Application.EnableEvents = False
      For Each c In Range("A14:B48")
        If c.Value <> 0 Then
           Range(Cells(c.Row, "K"), Cells(c.Row, "O")).ClearContents
        End If
      Next c
    Application.EnableEvents = True
End Sub