hi i have some data like attached excel file i want to create some dashboard with line chart that show the sum amount of my bank transaction i know that i can checked accumulation in my chart but i need some other things i attached my qv dashboard too in my case i need some group dimension with year,month and day. in first step when user see the bar it can see the amount o f my transaction in each year and for each year he/she can see sum of this year transaction and prev year. every thing is ok in first step. but when user drill down to month from fro example year 2011 he/she can just see the transaction of 2011 year but i need then end value of transaction for 2010 plus 2011 . i need it for day drill too can any one help me?