Excel formula to DAX

[CJ_96601]

Dear All, 

Can someone help me to convert below excel formula to DAX formula.   I'm trying to calculate employee tenure

=IF([@[FINAL_PROCESS_DATE]]<>"",SUM(SUM([@[FINAL_PROCESS_DATE]]-[@HIREDATE])/365),SUM(NOW()-[@HIREDATE])/365)

Regards, 

[jthomson]

tenure = 

var enddate = if ([final_process_date] = blank(), today(),[final_process_date])

return datediff ([hiredate],enddate,DAY)/365

Might need to use null rather than blank dependent on exactly what your data types are

[CJ_96601]

Thanks.  but its not working. error in Today()