I have the below complex SQL query and I need to convert this SQL query to DAX formulas in Power BI desktop, How I can do that?

select
departmentName,
sum(ProductivityGain) ProductivityGainHours, sum(ProductivitySavings) ProductivitySavings,
sum(leavesGranted) leavesGrantedDays,
sum(leavesGranted) / sum(headCount) avgLeaveGrantedDaysPerEmployee,
sum(leavesTaken) leavesTakenHours,
round(100.00*(sum(leavesTaken) / (sum(leavesGranted)*8)),3) leaveRate,
round((sum(leavesTaken)/8) / sum(headCount),3) avgLeaveTakenDaysPerEmployee,
(sum(leavesGranted) - sum(leavesTaken)/8) / sum(headCount) avgLeaveRemainingDaysPerEmployee,
round((avg(hourlyRate)*((sum(leavesGranted) - sum(leavesTaken)/8)) / sum(headCount)),3) avgLeaveRemainingPotentialSavingsPerEmployee,
round(sum(annualLeaveRemaingDays) / sum(headCount),3) avgAnnualLeaveDaysRemaing
from
(select f.employeeid,f.GlobalclientId clientId, d.departmentName, l.leaveType,
case
when datepart(year,dateOfBirth) between 2013 and 2025 then 'Gen Alpha'
when datepart(year,dateOfBirth) between 1995 and 2012 then 'Gen Z'
when datepart(year,dateOfBirth) between 1980 and 1994 then 'Gen Y'
when datepart(year,dateOfBirth) between 1966 and 1979 then 'Gen X'
when datepart(year,dateOfBirth) between 1946 and 1965 then 'Baby Boomers'
when datepart(year,dateOfBirth) between 1925 and 1945 then 'Silent Generation'
when datepart(year,dateOfBirth) < 1925 then 'Greatest Generation'
when datepart(year,dateOfBirth) > 2025 then 'To Be Determined'
end ageGeneration,
case
when year(getdate()) - year(dateOfBirth) between 13 and 18 then '13 - 18'
when year(getdate()) - year(dateOfBirth) between 19 and 27 then '19 - 27'
when year(getdate()) - year(dateOfBirth) between 28 and 35 then '28 - 35'
when year(getdate()) - year(dateOfBirth) between 36 and 45 then '36 - 45'
when year(getdate()) - year(dateOfBirth) between 46 and 55 then '46 - 55'
when year(getdate()) - year(dateOfBirth) between 56 and 65 then '56 - 65'
when year(getdate()) - year(dateOfBirth) >= 66 then '65+'
end ageGroup,
l.absentReason,
dates.[year] dimYear, dates.[month] dimMonth,
f.email, FirstDayOfMonth,
max(annualSalary) annualSalary ,
(sum(f.annualLeaveAllocated+MedicalLeaveAllocated+ParentLeaveAllocated+CasualLeaveAllocated+LongServiceLeaveAllocated)*8 -
isnull(sum(l.hours),0)) * sum(f.annualSalary/c.[AverageYearlyWorkingHours]) ProductivitySavings,
sum(f.annualLeaveAllocated+MedicalLeaveAllocated+ParentLeaveAllocated+CasualLeaveAllocated+LongServiceLeaveAllocated)*8 ProductivityGain,
--,
sum(f.annualSalary/c.[AverageYearlyWorkingHours]) hourlyRate,
--
cast(sum(f.annualLeaveAllocated+MedicalLeaveAllocated+ParentLeaveAllocated+CasualLeaveAllocated+LongServiceLeaveAllocated) as decimal(28,2)) leavesGranted,
cast(count(1) as decimal(28,2)) headcount,
cast(isnull(sum(l.hours),0) as decimal(28,2)) leavesTaken,
sum(f.annualLeaveAllocated) -
(sum(case
when leaveType = 'Annual Leave' then [hours]
else 0
end) / 8 ) annualLeaveRemaingDays,
sum(f.medicalLeaveAllocated) -
(sum(case
when leaveType = 'Medical Leave' then [hours]
else 0
end) / 8 ) medicalLeaveRemaingDays
--
from hr.factHr f
cross join
(select distinct [year], LastDayOfMonth, FirstDayOfMonth, [month] from shared.dateDimension) dates
left outer join hr.leaves l
on l.employeeId = f.employeeId
and [date] <= LastDayOfMonth
cross join hr.companyDetail c
inner join hr.department d
on d.departmentId = f.departmentId
where
dateofJoining <= LastDayOfMonth
and
( terminationDate is null
or terminationDate > LastDayOfMonth)
group by f.Globalclientid ,d.departmentName,leaveType, dateOfBirth,
absentReason,
f.employeeid,f.email, dates.[year], dates.[month],FirstDayOfMonth) dataset
where dimYear = 2018
and dimMonth = 1
group by departmentName