CREATE TABLE table_204_443 (id DECIMAL, "week" DECIMAL, "date" TEXT, "opponent" TEXT, "result" TEXT, "game site" TEXT, "attendance" DECIMAL, "bye" TEXT)

what is the difference in attendance between the first and last game of the season ?
SELECT ABS((SELECT "attendance" FROM table_204_443 ORDER BY "date" LIMIT 1) - (SELECT "attendance" FROM table_204_443 ORDER BY "date" DESC LIMIT 1))
SELECT ABS((SELECT "attendance" FROM "table_204_443" ORDER BY "date" NULLS FIRST LIMIT 1) - (SELECT "attendance" FROM "table_204_443" ORDER BY "date" DESC NULLS LAST LIMIT 1))