If you can't use DAX/Powerpivot, an older trick is doing a pivot on the pivot.
It can be invoked by using ALT+D+P -> select range of first pivot and then create a new one.
Example attached. It is not ideal, if possible I suggest to evaluate if PowerPivot can be installed as add-in in your Excel version, if it is not already build in. As of version 2010 (for Win OS).