How to add cumulative percent for columns

Hi All,

I need to have cumulative percent across my columns

Below is my report outline and report output

I need cumultiive percent between A/B

followed by B/C followed by C/D and so on

hence the column will be

Advisor

Total Application

A

B

A/B percent

B

C

B/C percent

C

D

C/D percent

and so on

Any helpon this will be greatly appreciated

Thanks

Pradnya07