private void cargarTotalComanda(Comanda comanda)
{
tdIVA.Text = comanda.obtenerIVA().ToString("C", CultureInfo.CurrentCulture);
tdSubtotal.Text = comanda.obtenerTotalOrden().ToString("C", CultureInfo.CurrentCulture);
tdTotal.Text = comanda.obtenerTotal().ToString("C", CultureInfo.CurrentCulture);
}