Compare values between selected different selected dates
Hello, my question is how to compare data (measures) between two dates selected on the fly (in a filter). I mean, I need to see the sales in a period or year or month and compare to the sales (same measure) with another selected date (period, day or year). So i need filters to select both dates. But i don´t know if i nedd to create a new master calendar, a new field date. I don´t know how to deal with it. I have two calendars and two date fields, but, obviously when i select a date, all the rows where the date doesn´t meet the filter are not selected, so i can´t get any row for the date i need to compare.
