Day YoY measure

When you are using today and today - 1 year. Till only give you revenue for those dates.

Your simple sum of amount and the same period last year will give you that on a daily basis. Using the calendar you can view same at daily, month , qtr or for an year

This period = CALCULATE(sum(Sales[Sales Amount]))

last year same period = CALCULATE(sum(Sales[Sales Amount]),SAMEPERIODLASTYEAR('Date'[Date Filer]))

There are other options for the month, qtr and year like datesmtd, totalmtd etc

MTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESMTD('Date'[Date Filer]))
last MTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESMTD(dateadd('Date'[Date Filer],-1,MONTH)))

QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(('Date'[Date Filer])))

Last QTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESQTD(dateadd('Date'[Date Filer],-1,QUARTER)))

YTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESYTD(('Date'[Date Filer])))

Last YTD Sales = CALCULATE(SUM(Sales[Sales Amount]),DATESYTD(dateadd('Date'[Date Filer],-1,Year)))

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My Recent Blog - https://community.powerbi.com/t5/Community-Blog/Comparing-Data-Across-Date-Ranges/ba-p/823601