CREATE TABLE table_name_40 (win__percentage NUMBER, manager VARCHAR2, lost VARCHAR2)

What is the highes win % that manager juan carlos ch vez's team had when they lost less than 4 times?
SELECT MAX(win__percentage) FROM table_name_40 WHERE manager = "juan carlos chávez" AND lost < 4
SELECT MAX("win__percentage") FROM "table_name_40" WHERE "juan carlos chávez" = "manager" AND "lost" < 4