I have a formula that I created in a worksheet that reads thus

=DSUM(DB,3,JAN)

The database is a range of cells from A6 to G36, the 3 represents the third
column in the database (or the field) and the JAN is the Criteria on another
sheet. These cells are C3 which equals the word DATE and C4 which has the
following formula

=AND('Expense 1'!A7=Criteria!$A$4, 'Expense 1'!A7<=Criteria!$B$4)

Everytime I try to Copy the Sheet Expenses 1 the formula does not work. I
get all zeros where the =DSUM formula should be calculating.

Does anyone know how I can get these formulas to work when I Copy the Sheet
and create a new one? I need 25 Sheets that will all do the same math.

Thanks
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bb