Calculate total working days based on selected sales representives

[rm1]

Hello Everyone!
I need to calculate the total working days of a group of sales reps.
Everyone has the same calendar, but different starting dates (someone started to work after the 1st of January).

In order to calculate working days for a single person that I chose inside my filters, I simply use the following formula:
NetWorkDays (FirstSortedValue({1<year = {'2020'}, rep_name=p(rep_name)>} distinct date, date), today())

This works perfectly for a single rep because it counts since its first working day until today.
My question is: How can I calculate the exact amount of days if I choose more than one rep?

Using:
NetWorkDays (FirstSortedValue({1<year = {'2020'}, rep_name=p(rep_name)>} distinct date, date), today()) * (Count(distinct rep_name))
is wrong because the formula picks the rep with maximum number of days and multiplies them for the number of reps that I choose.
E.G. REP 1 = 30 days; REP 2 = 100 days
this formula returns 200 days instead of 130.

Can anyone help me?
Thanks a lot in advance

All the best!

[kaushiknsolanki · Accepted solution]

Try this.

Sum(Aggr(NetWorkDays (FirstSortedValue({1<year = {'2020'}, rep_name=p(rep_name)>} distinct date, date), today()),rep_name))

[rm1]

It worked perfectly.

Thanks a lot!