Value in between two variables

[Anonymous]

I am trying to figure out how to work with variables, and I came to this formule which works:

Sum({$<Omzet.Month={$(=Month(Today(2))-1)}>} Omzet.Netto_orderbedrag)

It returns the sum of the "Omzet.Netto_orderbedrag" from the previous month (Month(Today(2))-1).

What I now want is is a formule which returns the "Omzet.Netto_orderbedrag" from several months, for example the 5 months before the previous month. So somewhere in the formule it must have something like this : >=(Month(Today(2))-6) >(Month(Today(2))-1)
But I don't get it to work, don't know which quote and breaks where to use.

I am sure you experts know how to do this! 🙂

Thanks.

[#2]

It was the qualification of the month field. omzet.month instead of month.

Have Fun Alex:)