Function: round(mean(numbers('ryy') if numbers('ryy') if product(numbers('ryy'), numbers("per")) > numbers("xxy") else numbers("per") > numbers("per") else product(numbers('ryy'), numbers("per")), numbers("per") if numbers("xxy") > product(numbers('ryy'), numbers("per")) else numbers('ryy')), numbers('ryy') if product(numbers('ryy'), numbers("per")) > numbers("per") if product(numbers('ryy'), numbers("per")) > numbers("xxy") else numbers('ryy') else numbers("per"))
