CREATE TABLE table_203_523 (id DECIMAL, "state" TEXT, "swimsuit" DECIMAL, "interview" DECIMAL, "evening gown" DECIMAL, "average" DECIMAL, "finalists" DECIMAL)

what is the difference in points between the finalists and average in iowa ?
SELECT "finalists" - "average" FROM table_203_523 WHERE "state" = 'iowa'
SELECT "finalists" - "average" FROM "table_203_523" WHERE "state" = 'iowa'