Macro

[Sheetal]

I need to create a macro in excel that can calculate a cumulative total.
Everyday, I add about 60 - 100 new rows to my spreadsheet, and by
subtotalling it, I calcuate the totals for each individual row. I want
to be able to do this via a macro so that I don't have to keep summing
the rows.

Please help

Thanks

Sheetal