I have the following problem, I want to see the percentage of new sessions in a given month. I am specifically interested in new sessions by "direct" channelgrouping
in custom report I set dimensions for November: yearMonth, source, medium, channelgrouping. and metrics:percentNewSessions it gives me 35%
then I create a custom reports with the same dimension but with Date as a metric.I average the %new session and get 38%
why does it differ? What should I trust?