Calculating Month to date values

Hi All,

I have a requirement which goes like this:

The user enters a date range 05/01/2014 to 05/15/2014 and the report should display the data for all the posting dates in this date range. Also it should calculate the MTD values like below:

Profit Center    Posting Date   Amount    Hours    MTD Amount     MTD Hours

  AAAA            05/05/2014       100         20           100                   20

  BBBB            05/12/2014        50          10           150                   30

Can someone provide any ideas how to proceed?

Thanks.