Function: round(minus(mean(abs(numbers("per")), numbers("per")), abs(numbers("per"))) if abs(numbers("per")) > abs(numbers("per")) if minus(mean(abs(numbers("per")), numbers("per")), abs(numbers("per"))) > mean(abs(numbers("per")), numbers("per")) else numbers("per") else mean(abs(numbers("per")), numbers("per")), abs(numbers("per")) if minus(mean(abs(numbers("per")), numbers("per")), abs(numbers("per"))) > numbers("per") else mean(abs(numbers("per")), numbers("per")))