You can easily export your project data to a spreadsheet using the "Export Data" feature.
To do this, go to Overview page of your project and click Export Data.
The CSV file will include both the selling and cost price of each project as well as other important things you might need for archiving purposes.
Note: If you wish to sort the Excel sheet by manufacturer, click on the drop down arrow on the Manufacturer column and click Sort Ascending. This works for any column.