Which percent has Wins larger than 72, and a Name of john yovicsin?
CREATE TABLE "head_coaching_history" (
  "name" text,
  "years" text,
  "wins" real,
  "losses" real,
  "ties" real,
  "pct" real
);
SELECT SUM("pct") FROM "head_coaching_history" WHERE "wins">72 AND "name"='john yovicsin';