When is the season finale of meiyang chang?
CREATE TABLE "series_winners" (
  "season" real,
  "season_premiere_date" text,
  "season_finale_date" text,
  "winner" text,
  "1st_runner_up" text,
  "2nd_runner_up" text
);
SELECT "season_finale_date" FROM "series_winners" WHERE "winner"='Meiyang Chang';