What is the average percent for the coach from 1905 and more than 7 losses?
CREATE TABLE "head_coaches_and_all_time_results" (
  "name" text,
  "years" text,
  "seasons" real,
  "lost" real,
  "pct" real
);
SELECT AVG("pct") FROM "head_coaches_and_all_time_results" WHERE "years"='1905' AND "lost">7;