Pivot Table

[upaliwije]

Hi

In my QV document I have a pivot table like given below

FMonth_Year	REVENUE	COST
Jul-2015	197,629,999	115,393,118
Aug-2015	205,184,562	90,634,108
Sep-2015	205,310,127	118,830,858
Oct-2015	213,414,146	116,829,218
Nov-2015	210,071,164	112,696,709
Dec-2015	248,441,458	130,523,044
Jan-2016	215,390,668	113,932,903
Feb-2016	222,553,371	115,182,775
Mar-2016	221,173,065	122,596,194
Apr-2016	228,302,910	112,877,640
May-2016	222,898,991	116,353,477
Jun-2016	231,572,131	128,801,425

I want to insert columns in this Pivot table which should be as follows

FMonth_Year	REVENUE	Rev.Increase	COST	Cost Increase
Jul-2015	197,629,999		115,393,118
Aug-2015	205,184,562	7,554,562	90,634,108	(24,759,010)
Sep-2015	205,310,127	125,566	118,830,858	28,196,750
Oct-2015	213,414,146	8,104,019	116,829,218	(2,001,640)
Nov-2015	210,071,164	(3,342,982)	112,696,709	(4,132,509)
Dec-2015	248,441,458	38,370,294	130,523,044	17,826,335
Jan-2016	215,390,668	(33,050,790)	113,932,903	(16,590,141)
Feb-2016	222,553,371	7,162,703	115,182,775	1,249,872
Mar-2016	221,173,065	(1,380,306)	122,596,194	7,413,419
Apr-2016	228,302,910	7,129,845	112,877,640	(9,718,553)
May-2016	222,898,991	(5,403,920)	116,353,477	3,475,836
Jun-2016	231,572,131	8,673,140	128,801,425	12,447,948

my expression is as follows

SUM({<DESCRIPTION={'TOTAL_REVENUE'}>}ACTUAL)     // for Revenue

SUM({<DESCRIPTION={'COST'}>}ACTUAL)    // FOR  cost

Pls help me to write expression for revenue increase and cost increse over the last month

[upaliwije]

Thanks all