Private Sub NumericUpDown1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles nudNumberOfGuests.ValueChanged
If nudNumberOfGuests.Value > 2 Then
txtGuestSurcharge.Text = nudNumberOfGuests.Value * csglGuestSurcharge
End If
If nudNumberOfGuests.Value <= 2 Then
txtGuestSurcharge.Text = "0"
End If
txtGuestSurcharge.Text = Format(txtGuestSurcharge.Text, "c")
End Sub