Between November 25–30, 2008 the sellout rate was at 75%, indicating that the ration between shows to sellout was what?
CREATE TABLE "table1_22123920_4" (
  "dates_mdy" text,
  "gross_sales" text,
  "tickets_sold_available" text,
  "shows_sellout" text,
  "sellout_pct" text
);
SELECT "shows_sellout" FROM "table1_22123920_4" WHERE "sellout_pct"='75%';