Which Reporting Tool Goes Well Is ASP

I am building a ASP financial reporting application. Here the user inputs
quarterly financial information. The data obtained is being used for
uploading a separate in-house application. The end-user should be in a
postion to run reports on their own based on the quarterly information they
furnish via the web applciation.

My question here is what is the best way to devleop reports in the asp
applications so that users can view their own report online? Somebody
suggested pure html reports. However, I believe there should be better ones
which would be web based.