Previous 'Same' Period using Fiscal Year

Hi 

i have a date dimension which has fiscal year periods defined in it, as well as calendar year periods

I am trying to get the Previous Years Fiscal Month Revenue

Previous Year Revenue = CALCULATE(
SUM('Registrations'[Revenue]),
FILTER(ALL('Date'),
'Date'[Fiscal Month] = 'Date'[Fiscal Month]
&& 'Date'[FYYear]='Date'[FYYear]-1))

unfortunately this is returning blank data,