Set analysis - Cumulative data

[verafa]

Hello all, 

I am willing to generate a line graphic with the accumulate sales by mounth. Like the one below, but showing the accumulate data in every month, not the individual value, so that in january I have only january data, but in february january+february and so on....

Which kind of expression I need to use? 

Thanks, 

Vera 

[Mark_Winter]

Hi Vera,

Use the measure modifiers to accumulate them.

[verafa]

perfect! I have never used them before! thanks