$line_tax = get_full_price_for_item($delivery_line->stock_id, $delivery_line->price,
0, $delivery->tax_included, $delivery->tax_group_array) - $line_taxfree_price;
$line_tax = get_full_price_for_item($delivery_line->stock_id, $delivery_line->price,
0, $delivery->tax_included, $delivery->tax_group_array) - $line_taxfree_price;