Find the difference between two columns in an ssrs matrix ? MSCRM

Hi All,

I am working in reporting part of our project (On-line MSCRM 2013). I am new in reporting services.

I am trying to create report using fetch xml based. Below is the snap what we have required the result.

Kindly help me, how to get the difference in both column. (Its a matrix table where year is grouped).



Thanks,

Mohammad Sharique