Function: minus(mean(exp(numbers("per"), numbers("yyy")), numbers("per")) if exp(numbers("per"), numbers("yyy")) > numbers("per") else numbers("yyy") if exp(numbers("per"), numbers("yyy")) > mean(exp(numbers("per"), numbers("yyy")), numbers("per")) else numbers("per"), numbers("yyy") if numbers("per") > exp(numbers("per"), numbers("yyy")) else mean(exp(numbers("per"), numbers("yyy")), numbers("per")))
