Show difference in line chart

[anuradhaa]

I have below data set. I want to calculate the differance and show that in line chart

My Data set as follow

Month	Sales
2014-dec	1000
2015-jan	1500
2015-feb	2000
2015-march	750
2015-april	1586
2015-may	2258
2015-june	4415
2015-july	2133
2015-aug	9946
2015-sep	1334
2015-oct	1587
2015-now	2145
2015-dec	987
2016-jan	2456

I want to show

jan-dec	500
Jan - feb	500
feb -march	-1250
march - apr	836
apr -may	672
may -june	2157

etc in line chart. for last 12 months

is it possible

[swuehl · Accepted solution]

Maybe like

=Sum(Sales) -Above(Sum(Sales))

as expression with dimension Month

[sunny_talwar]

May be like the attached