Can anybody help creating a startamount?

[#1]

Hi all,

In QV 11 I have the following challenge: At a certain moment in time we start selling a product, then 2 years later I would like to have an overview what has been sold in the previous 4 months. My start amount in this overview are all my aggregated amounts starting at the beginning up to my current selected periode.

Period 0,1, 2 etc. are year months combinations in my datasetc.

Below you will find an example:

	start	aggregated sales per period	aggregated
period 0	0	10	10
period 1	10	10	20
period 2	20	30	50
period 3	50	20	70
period 4	70	10	80
period 5	80	40	120
period 6	120	45	165
period 7	165	35	200
period 8	200	20	220
Chart
Period 4	70	10	80
Period 5	80	40	120
Period 6	120	45	165
Period 7	165	35	200
Period 8	200	20	220

Thanks in advance

[#2 · Accepted solution]

Hi all thank you if you were trying to find a solution, but thanks I already solved it.