Você pode usar
ORDER BY
dentro do GROUP_CONCAT
funcionar desta forma:SELECT li.client_id, group_concat(li.percentage ORDER BY li.views ASC) AS views,
group_concat(li.percentage ORDER BY li.percentage ASC)
FROM li GROUP BY client_id
ORDER BY
dentro do GROUP_CONCAT
funcionar desta forma:SELECT li.client_id, group_concat(li.percentage ORDER BY li.views ASC) AS views,
group_concat(li.percentage ORDER BY li.percentage ASC)
FROM li GROUP BY client_id