What percentage of donations are given via a giving or campaign page? List the primary area of those donations.
given via a giving or campaign page refers to via_giving_page = 't'; percentage refers to DIVIDE(count(case when via_giving_page = 't' then donationid else null end),count(donationid))*100; primary area of donation refers to primary_focus_area
SELECT CAST(SUM(CASE WHEN T1.via_giving_page = 't' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(donation_total), ( SELECT T2.primary_focus_area FROM donations AS T1 INNER JOIN projects AS T2 ON T1.projectid = T2.projectid WHERE T1.via_giving_page = 't' GROUP BY T2.primary_focus_area ORDER BY SUM(T1.donation_total) DESC LIMIT 1 ) result FROM donations AS T1 INNER JOIN projects AS T2 ON T1.projectid = T2.projectid