Clicking the fourth button in the Primary Toolbar takes you to the Report View.
This view provides access to a range of Reports for your project.
You can use the buttons in the top right to change which Report is shown along with sorting options:
This View creates a Summary of each Buildings Usage. All Zones are summarised collectively at the bottom of the Report
This View creates a Summary of each Usage Type, indicating which Building/Zone has the applicable Usage.
All of the Reports listed above can be exported to PDF using the Export button in the Primary toolbar (fifth button from the left)
You have full control over the reporting Units in the Project settings where you can select your preferred unit and level of rounding.