protected function getFeeLine($item)
    {
        $quantity = $item->get_quantity();
        $feeEx = $item->get_total() / $quantity;
        $feeVat = $item->get_total_tax() / $quantity;

        $result = array(
                Tag::Product => $this->t($item->get_name()),
                Tag::UnitPrice => $feeEx,
                Tag::Quantity => $item->get_quantity(),
            ) + $this->getVatRangeTags($feeVat, $feeEx, $this->precision, $this->precision);

        return $result;
    }