text: declare a int
  declare b int 
  select t1.Request_at as Day,a/b as `Cancellation Rate`
  from Trips t1
  select count(t1.Request_at) into b
  select count(t1.Request_at) into a where Status like "cancellde%"
  where t1.Client_Id in (
      select Users_Id from Users where Banned="No" and Role="client"
  )
  group by t1.Request_at
  
  -- select t1.Request_at as Day,format((select count(Status) from Trips t2 where t2.Request_at=t1.Request_at and Status like "cancellde%" and  t2.Client_Id in (
  --     select Users_Id from Users where Banned="No" and Role="client"
  -- ))/count(t1.Request_at)) as `Cancellation Rate`
  -- from Trips t1
  -- where t1.Client_Id in (
  --     select Users_Id from Users where Banned="No" and Role="client"
  -- )
  -- group by t1.Request_at