Date filter not 100% working

Hello All!

I put a date filter in my dashbord but unfortunatly it dosen't work ( ex: i want my net sales per date when i select 3 month(jan, feb,mars ) in my filter it only show only the net sales of january ) any help ?

please post diagnostic info and reproduction steps

So, what i want is whenenever Ichange the date the ratio change as well, and if i choose 3 dates or more I want the addition of the 3 ratio
Thank you !!