CREATE TABLE table_68 ("Rank" FLOAT, "Member Association" TEXT, "Points" TEXT, "Group stage" FLOAT, "Play-off" FLOAT, "AFC Cup" FLOAT)

What is the lowest group to earn 886.6 points?
SELECT MIN("Group stage") FROM table_68 WHERE "Points" = '886.6'
SELECT MIN("Group stage") FROM "table_68" WHERE "Points" = '886.6'