http://metaclass.livejournal.com/ ([identity profile] metaclass.livejournal.com) wrote in [personal profile] falcrum 2012-05-18 07:02 am (UTC)

Есть:
=SUM(A1:OFFSET(A5;-2;0))-OFFSET(A5;-2;0)

более логичный вариант:
=SUM(A1:OFFSET(A5;-3;0))

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