select
case when e.published and a.type not in('large','medium') then 'Met condition' else 'Not met condition' end conditions
, count(distinct e.id) totals
, group_concat(distinct e.id) event_ids
, count(distinct e.id) * 100.0 / x.total_cnt percentage
from events e
join Attributes a on a.event_id = e.id
cross join (select count(*) as total_cnt from events) x
group by case when e.published and a.type not in('large','medium') then 'Met condition' else 'Not met condition' end, total_cnt
db<>fiol här