How To Compare Sum(Sales) for two Timestamps

[#1]

I am struggling to compare Sum(Sales) for two different timestamps. Need help. Thanks,Branislav

[#2]

Desn't seem to work

[sunny_talwar]

Since today's date expression is not the only one working, can you try this may be:

=Sum({<STAMP_DATE = {"$(=TimeStamp(Max(STAMP_DATE), 'YYYY MM DD hh:mm:ss TT'))"}>}NET_SALES)