What is the average rank of the movie from Paramount Studios that grossed $200,512,643?
CREATE TABLE "highest_grossing_films" (
  "rank" real,
  "title" text,
  "studio" text,
  "director" text,
  "gross" text
);
SELECT AVG("rank") FROM "highest_grossing_films" WHERE "studio"='paramount' AND "gross"='$200,512,643';