Current Month, Last Month and Last Year Current Month

Hi All,

I have a requirement in a webi report which should display the Net price of certain materials for the Month Selected in prompt where the field used us Calendar Day as To and From.

Also, in the report output there should be a comparison of three date fields which are Selected Month (i.e. based on the input in prompts) and then Previous month of the same year and same month of last year.

For Example

     Material Name     Oct-2015     Sep-2015     Oct-2014

          ABC                    235          123               12

          DEF                    454          65                654

          WRE                  65423     6423               9876

          WDS                  78452      9687               313

So here we have Selected Month i.e. Oct 2015 where the prompt used is 01/10/2015 to 31/10/2015.

Please help me out here. Also let me know if any more information is required.

Regards

Sandeep