Verified / Non-verified emails statistic

SELECT `users`.`date`,
       `verified`.`count` AS `verified emails`,
       `non_verified`.`count` AS `non verified emails`,
       `users`.`count` AS `total registrations`,
       CONCAT(ROUND(( `verified`.`count` / `users`.`count` * 100 ), 2), '%') AS `verified percentage`,
       CONCAT(ROUND(( `non_verified`.`count` / `users`.`count` * 100 ), 2), '%') AS `non verified percentage`
FROM (
    SELECT DATE_FORMAT(`registration_date`, '%Y - %m') AS `date`, COUNT(*) AS `count`
    FROM `tbl_user`
    GROUP BY DATE_FORMAT(`registration_date`, '%Y%m')
) AS `users`
LEFT JOIN (
    SELECT DATE_FORMAT(`registration_date`, '%Y - %m') AS `date`, COUNT(*) AS `count`
    FROM `tbl_user`
    WHERE `email_verified` = 0
    GROUP BY DATE_FORMAT(`registration_date`, '%Y%m')
) AS `non_verified` ON `users`.`date` = `non_verified`.`date`
LEFT JOIN (
    SELECT DATE_FORMAT(`registration_date`, '%Y - %m') AS `date`, COUNT(*) AS `count`
    FROM `tbl_user`
    WHERE `email_verified` = 1
    GROUP BY DATE_FORMAT(`registration_date`, '%Y%m')
) AS `verified` ON `users`.`date` = `verified`.`date`