Values to date 30 days ago/ Set Analysis

[Applicable88]

Hello,

I changed a lot but still cannot figure out:

count({<[deliverydate.autoCalendar.Date]={"<=$(=Date(today())-30)"}>}Delivery)

Count the Deliveryno. older than thirty days from today . 

I always got wrong value. 

Hope someone can help. 

Thanks a lot.

Best. 

[dplr-rn · Accepted solution]

after replacing the date format with your own try  below date part of the expression

Date(today()-30, 'DD-MMM-YYYY')

count({<[deliverydate.autoCalendar.Date]={"<=$(=Date(today()-30, 'DD-MMM-YYYY'))"}>}Delivery)