Query Revenue by quarters

Hi,

I need to create a query which should display the sales revenue by quarters. Currently the infoprovider has the value only for 0calmonth and I was able to create a query with the result as sales revenue by month for a particular year. Could someone please assist me how we can create a query which should display the sales value by quarters instead of month.

I would appreciate if someone can send me the detailed steps for this.

Thanks,

Bregards,

Bala