Burndown/Burn up for Stories

Hello Team,
We are trying to implement a specific requirement through RTC plans.
- Under our Project, there are four major categories under those all the stories and task would be assigned. I am defining these categories as "File against" (Work item categories) attribute.
- Under these categories, there are suppose to be epics/stories and all the work items will be associated with one of these stories.

Project Area
---------- Category1
----------- Storie1
-------- Work items (1-10)
----------- Storie2
-------- Work items (1-10)

---------- Category2
----------- Storie1
-------- Work items (1-10)
----------- Storie2
-------- Work items (1-10)

After implementing this structure, we would like to see burndown charts on stories level and at category level.

for example, if there are 10 work items associated (child) of a story and five are completed then chart should show that 50 % of the story is completed.... Similarly it should be able to go till category level.

Is there such way ?

Regards
Vishnu Kumar