Hello
Data from a1 to e13 is this
[TABLE="width: 361"]
<colgroup><col><col><col><col span="2"></colgroup><tbody>[TR]
[TD]Date[/TD]
[TD]Sales[/TD]
[TD]Date[/TD]
[TD]Sales[/TD]
[TD]% Profit[/TD]
[/TR]
[TR]
[TD="align: right"]Apr-17[/TD]
[TD="align: right"]5000[/TD]
[TD="align: right"]Apr-18[/TD]
[TD="align: right"]9000[/TD]
[TD="align: right"]80[/TD]
[/TR]
[TR]
[TD="align: right"]May-17[/TD]
[TD="align: right"]4000[/TD]
[TD="align: right"]May-18[/TD]
[TD="align: right"]3000[/TD]
[TD="align: right"]-25[/TD]
[/TR]
[TR]
[TD="align: right"]Jun-17[/TD]
[TD="align: right"]1000[/TD]
[TD="align: right"]Jun-18[/TD]
[TD="align: right"]6000[/TD]
[TD="align: right"]500[/TD]
[/TR]
[TR]
[TD="align: right"]Jul-17[/TD]
[TD="align: right"]5000[/TD]
[TD="align: right"]Jul-18[/TD]
[TD="align: right"]4000[/TD]
[TD="align: right"]-20[/TD]
[/TR]
[TR]
[TD="align: right"]Aug-17[/TD]
[TD="align: right"]2000[/TD]
[TD="align: right"]Aug-18[/TD]
[TD="align: right"]5000[/TD]
[TD="align: right"]150[/TD]
[/TR]
[TR]
[TD="align: right"]Sep-17[/TD]
[TD="align: right"]1000[/TD]
[TD="align: right"]Sep-18[/TD]
[TD="align: right"]3000[/TD]
[TD="align: right"]200[/TD]
[/TR]
[TR]
[TD="align: right"]Oct-17[/TD]
[TD="align: right"]5000[/TD]
[TD="align: right"]Oct-18[/TD]
[TD="align: right"]2000[/TD]
[TD="align: right"]-60[/TD]
[/TR]
[TR]
[TD="align: right"]Nov-17[/TD]
[TD="align: right"]2000[/TD]
[TD="align: right"]Nov-18[/TD]
[TD="align: right"]6000[/TD]
[TD="align: right"]200[/TD]
[/TR]
[TR]
[TD="align: right"]Dec-17[/TD]
[TD="align: right"]1000[/TD]
[TD="align: right"]Dec-18[/TD]
[TD="align: right"]9000[/TD]
[TD="align: right"]800[/TD]
[/TR]
[TR]
[TD="align: right"]Jan-18[/TD]
[TD="align: right"]4000[/TD]
[TD="align: right"]Jan-19[/TD]
[TD="align: right"]1000[/TD]
[TD="align: right"]-75[/TD]
[/TR]
[TR]
[TD="align: right"]Feb-18[/TD]
[TD="align: right"]3000[/TD]
[TD="align: right"]Feb-19[/TD]
[TD="align: right"]7000[/TD]
[TD="align: right"]133.3333[/TD]
[/TR]
[TR]
[TD="align: right"]Mar-18[/TD]
[TD="align: right"]5000[/TD]
[TD="align: right"]Mar-19[/TD]
[TD="align: right"]3000[/TD]
[TD="align: right"]-40[/TD]
[/TR]
</tbody>[/TABLE]
in e2 use this formula n then copy down till e13