CREATE TABLE table_203_8 (id DECIMAL, "player" TEXT, "rec." DECIMAL, "yards" DECIMAL, "avg." DECIMAL, "td's" DECIMAL, "long" DECIMAL)

what is the difference between the highest average and the lowest avaerage ?
SELECT MAX("avg.") - MIN("avg.") FROM table_203_8
SELECT MAX("avg.") - MIN("avg.") FROM "table_203_8"