A good overview and introduction to using Access database pivot tables. This video tutorial gives you enough to get you going and experiment with the flexible options of a pivot table and is clearly explained – hence the 10 minute video.
The key thing to remember is that you need to think about the grouping and analysis of the data required for this type of report which probably means a query and not a table in which your pivot table will be based.
Using the RDBMS (see my eBook offers for more help) is ever more present and important here too to help collate the correct field arrangement.
Finally, users tend to lean towards using Excel pivot tables (because they are used to it) but Access is generally much better!