Thank you for Reply Raghavendra Sir,
In @tot i was calculated the the some vale using this formula
{VendarMaster.kapat}*Sum ({SankalanBufMaster.bufmilk}, {SankalanBufMaster.venno})
This formula give me the value of the @tot which like in given report image is 152.5 and 35
it is in the group header section
I want the sum of the @tot in below section report footer
I am trying to calculate sum of @tot
Like this sum({@tot}) it gives error tot in filed.
Thank you,