I have created a report to calculate the monthly increase in sales.

I have sorted the report by month [DATE] (eg 1,2,3...)
then by store [STORE] (eg, 11,22,33,...)
and calculated the monthly sum of sales by store [SALESSUM]

How can I get the increase in [salessum] by store and over the previous month.

Thanks

You need to save the current month data in a variable, use it in the folowing month to calculate the delta and then replace it with the current value.  NEVER calculate the delta when the previous month's value is zero.

So, where ever [SALESSUM] is calculated:

If (PrevSalesSum <> 0) Then
    SalesIncr = [SalesSum] - PrevSalesSum
 Else
    SalesIncr = "N/A"
End If
PrevSalesSum = [SALESSUM]

The above is just a raw snippet, you should use it as a 'plan' for your real needs, not a 'pulg-and-play' model.



MichaelRed
mred@duvallgroup.com
There is never time to do it right but there is always time to do it over