CREATE TABLE table_name_80 (win__percentage NUMBER, year VARCHAR2, coach VARCHAR2, record VARCHAR2)

What is the largest win percentage when John Gartin is coach, the record is 11-0, and the year is 2009?
SELECT MAX(win__percentage) FROM table_name_80 WHERE coach = "john gartin" AND record = "11-0" AND year = "2009"
SELECT MAX("win__percentage") FROM "table_name_80" WHERE "11-0" = "record" AND "2009" = "year" AND "coach" = "john gartin"