SELECT 
        ir.id AS code,
        ir.description AS description, 
        CAST(SUM(IFNULL(i.stems,1) * s.quantity) AS DECIMAL(10,2)) as stems,
        CAST(SUM( weight) AS DECIMAL(10,2)) as netKg,
        CAST(SUM((s.quantity * s.price * (100 - s.discount) / 100 )) AS DECIMAL(10,2)) AS subtotal 
    FROM vn.sale s   
        LEFT JOIN vn.saleVolume sv ON sv.saleFk = s.id
        LEFT JOIN vn.ticket t ON t.id = s.ticketFk
        LEFT JOIN vn.invoiceOut io ON io.ref = t.refFk
        LEFT JOIN vn.item i ON i.id = s.itemFk   
        JOIN vn.intrastat ir ON ir.id = i.intrastatFk 
    WHERE io.id  = ? 
    GROUP BY i.intrastatFk;