date range picker: get last year from actual year dates

[pabloperezgarcia]

Hello,

I have this chart and I am comparing periods of time... I mean 25/07/2019 to 01/08/2019 with 25/07/2019 to 01/08/2019: 

How can I do that inmy expression for this chart, because Itis not working for the last year:

I have this for last year but it's not working: 

Sum({<Date={AddYears(Date,-1)}>}Sales) 

Thanks!!