The third ‘Detailed stats’ page is represented by a table that shows all the necessary information about your traffic and its profitability. For every group in the table, you can see the actual and predicted N-days LTV and the ROI for N-days.
Data can be grouped using up to three levels by Countries, Sources, Channels, Campaigns, Platforms, and Languages. For example, if you want to see the progress of your Ad campaigns in terms of traffic sources and then examine how well it goes in every country, you can set Group by Campaigns, Sources, and then by Countries in the report settings.
Keep in mind that the more groupings you choose, the fewer users you will have in each group and the less precise your forecast becomes.