How many percentages have 20 losses and more than 1 season?
CREATE TABLE "head_coaches_and_all_time_results" (
  "name" text,
  "years" text,
  "seasons" real,
  "lost" real,
  "pct" real
);
SELECT COUNT("pct") FROM "head_coaches_and_all_time_results" WHERE "lost"=20 AND "seasons">1;