Hello. Got a quick auto-filter question on Excel 2003.

I have 2 sheets: Data & Summary

On the Data sheet, I have a table of transactions for a given month. It has
ClientID, Client Info, TransactionAmount, Discounts, Transaction Date

On the Summary sheet, I have just totals for the entire Month.

What I want to do is to be able apply a filter the Data Sheet for one
specific ClientID and the summary page should update the calculations for
that selected ClientID.

I tried using Auto-Filter in the data sheet but the formulas is still
calculating the entire data sheet.

Is there a way to do this?

Thank you very much in advance.

Brig