Create custom date slicer based current selected periosd

Anonymous , try one of three options

//previous period month
Same Date range last period =
var _diff = datediff(MIN('Date'[date]),max('Date'[date]),Month)+1
var _p_st_date = MINX('Date',DATEADD('Date'[date],-1*_diff,Month))-1
var _p_end_date = MAXX('Date',DATEADD('Date'[date],-1*_diff,Month))-1
Return
CALCULATE(sum(Sales[Sales Amount]),all('Date'[date]),'Date'[date]>=_p_st_date && 'Date'[date]<= _p_end_date
)

Same Date range last period Month =
var _diff = datediff(MIN('Date'[date]),max('Date'[date]),Month)+1
Return
CALCULATE(sum(Sales[Sales Amount]),dateadd('Date'[date],-1*_diff,Month))

Same Date range last period =
var _diff = datediff(MIN('Date'[date]),max('Date'[date]),Month)+1
var _p_st_date = Eomonth(MINX('Date','Date'[date], _1* _diff)-1
var _p_end_date = Eomonth(MAXX('Date','Date'[date], _1* _diff)
Return
CALCULATE(sum(Sales[Sales Amount]),all('Date'[date]),'Date'[date]>=_p_st_date && 'Date'[date]<= _p_end_date
)