+------------+-----------+-------------------+----------------+-------------------------------+
|     n      |  n_parse  | pct_n_parse_of_n  | n_parse_mf_ni  | pct_n_parse_mf_ni_of_n_parse  |
+------------+-----------+-------------------+----------------+-------------------------------+
| 656646289  | 33701182  | 5.1323            | 74684          | 0.2216                        |
+------------+-----------+-------------------+----------------+-------------------------------+

select
    n,
    n_parse,
    round(100 * n_parse / n, 4) as pct_n_parse_of_n,
    n_parse_mf_ni,
    round(100 * n_parse_mf_ni / n_parse, 4) as pct_n_parse_mf_ni_of_n_parse
from (
    select
        count(*) as n,
        count(if(uri_query like '%action=parse%', 1, null)) as n_parse,
        count(if(uri_query like '%action=parse%' and uri_query like '%mobileformat%' and uri_query like '%noimages%', 1, null)) as n_parse_mf_ni
    from
        wmf.webrequest
    where
        year = 2018
        and month = 11
        and day = 28
        and uri_path = '/w/api.php'
) as numbers
;