Function: abs(minus(numbers("per"), numbers('yxy')) if numbers('yxy') if numbers("per") > numbers('yxy') else minus(numbers("per"), numbers('yxy')) > numbers("per") else numbers('yxy') if minus(numbers("per"), numbers('yxy')) > numbers('yxy') else numbers("per") if minus(numbers("per"), numbers('yxy')) > numbers('yxy') else numbers("per") if numbers('yxy') if numbers('yxy') > numbers("per") else minus(numbers("per"), numbers('yxy')) > minus(numbers("per"), numbers('yxy')) else numbers("per") if minus(numbers("per"), numbers('yxy')) > numbers('yxy') else numbers('yxy') if numbers('yxy') > numbers("per") else minus(numbers("per"), numbers('yxy')))