How to calculated 'nested' measures?

Hi, Sachintha 

For your first need, show values (zeros) for employees who've never submitted a ticket.You just need to select this:

For your second need , here are the steps you can refer to .

We need to create a calculated column like this:

Year_month = YEAR([Date])*100+MONTH([Date])

Then we can create a measure like this:

Measure = 
var _cur_year_month =CALCULATE( MAX('TicketList'[Year_month]), ALL('test2'[Manager]))
var _em1= VALUES('test2'[Employee])
var _em2 = CALCULATETABLE( VALUES(test2[Employee]) , 'test2'[Manager] in _em1,ALLSELECTED('test2'))
var _em3 = UNION(_em1,_em2)
var _total = COUNTROWS(_em3)
var _test =ADDCOLUMNS( CROSSJOIN( ALLSELECTED('test2'[Employee]) , ALLSELECTED('TicketList'[Year_month])) ,"flag" , CALCULATE(DISTINCTCOUNT('TicketList'[ID]),TREATAS({[Employee]},TicketList[Employee]),TREATAS({[Year_month]},'TicketList'[Year_month])  ,ALL('test2'[Manager])  ))
var _t2 = FILTER(_test, [flag] <> BLANK()  && [Year_month]=_cur_year_month && [Employee] in _em3)
return
COUNTROWS( _t2) / COUNTROWS(_em3)

Then we can put this measure on the visual and we can meet your need:

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

Best Regards,

Aniya Zhang

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