To get the number of work days:
=workday(end date; -25)

https://wiki.openoffice.org/wiki/Documentation/How_Tos/Calc:_WORKDAY_function

And assuming each service gets a different date:
=workday(end date; -service B)
You can do a lookup table for each service.

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Linux since June 2005

On Mon, Jun 14, 2021 at 5:58 AM Wade Smart <[email protected]> wrote:
>
> Question: does the meter per day have any relevance to the date?
> Is a working day equal to a business day? -> Mon - Fri only?
>
>
> --
> Registered Linux User: #480675
> Registered Linux Machine: #408606
> Linux since June 2005
>
> On Mon, Jun 14, 2021 at 5:44 AM Silvio Siefke <[email protected]> wrote:
> >
> > Hello,
> >
> > I have a table like:
> >
> > 11.04.2022;service a;250
> > 12.04.2022;service a;250
> > 13.04.2022;service a;250
> > 14.04.2022;service b;250
> > 15.04.2022;service b;250
> > 12.05.2022;service b;250
> > 13.05.2022;service c;250
> > 14.05.2022;service c;250
> > 17.05.2022;service d;250
> > 18.05.2022;service d;250
> >
> > Service a need 10 meters par day.
> > Service b need 1 meters par day.
> > Service c need 3 meters par day.
> > Service d need 5 meters par day.
> >
> > This mean 11.04.2022 - 25 working days = Project Start Day.
> >
> > The date is enddate, I need the start day based on service values of meters
> > and only working days.
> >
> > Is there a way?
> >
> > Thank you
> > Silvio
> >
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