Insert rows alternatively in Pivot Table to calculate percentage of fixed ranges

Dear Friends,

I have a pivot table like this:

Please Login or Register  to view this content.

I need to insert a row alternatively to do a percentage calculation of each quality points, as like below:

Please Login or Register  to view this content.

Is it possible to do like this in pivot table? If NO, any alternate method to accomplish this target? The items / company columns in my table frequently varies. Hence I am unable to refer the pivot table cells in any other sheet.

Any help is highly appreciated.

Thanks in advance.

acsishere.