# Write your MySQL query statement below
select
request_at Day, round(sum(if(status like "cancelled%",1,0))/count(*), 2)
"Cancellation Rate" from Trips where client_id not in (
select users_id from Users where role='client' and banned='Yes'
)
and
driver_id not in (
select users_id from Users where role='driver' and banned='Yes'
)
and request_at between '2013-10-01' and '2013-10-03' group by request_at