Displaying Inventory Valuation Report - with filters on Finished Goods
To access the report, click Reports > Inventory > Inventory Valuation Summary:

Click on the "More Filters" button and make sure the filters are set as shown here:
Ensure Group by: Category is set
Select the columns to be shown in the report, click the 'Customise Report Columns' button and select:
Run the report. It should look something like this: