I have to create a graph with Sales of last 12 months (June 2106 jback to July 2105) , compared with the year before (June 2015 - July 2014).
Data on the graph will have two lines ::
-> one line is the sales of 12 month from now until 12 months back
-> second line is the sales of 13 month ago until 24 months ago.
X-as contains 12 months not 24. (today we are for ex. june 2016):
Jun 2016
May 2016
Apr 2016
Mrt 2016
Feb 2016
Jan 2016
Dec 2015
Nov 2015
Oct 2015
Spt 2015
Aug 2015
July 2015
Can someone help me.
thx
