What is the highest Pct %, when Goals Against is less than 229?
CREATE TABLE "season_by_season_results" (
  "season" text,
  "games" real,
  "lost" real,
  "points" real,
  "pct_pct" real,
  "goals_for" real,
  "goals_against" real,
  "playoffs" text
);
SELECT MAX("pct_pct") FROM "season_by_season_results" WHERE "goals_against"<229;