This article provides detailed explanations of the Cost Reports available in PPO:
The report includes all the fields on the Costs entity for all cost records and projects. If the “Include Project Information” checkbox is selected, the report will also include all the fields on the project entity.
When viewing the Finance Data Report, you have an option to show the details or not (tick box). If the show details option is NOT selected, the report shows the summed costs per project, as well as a grand total for the entire portfolio of projects.
If the show details option is selected, the report is expanded to include a breakdown of the costs per category and per project.