Sales reports

Hey everyone, I'm working on a simple little setup whereby a user is charged for a product using Stripe.

Their successful payment is store in the db including their user id, product id, stripe id, amount and the date.

I'm now looking into generating a dashboard view that would show revenue over time.

What would be the best approach to build the actual reports? I'm aware of https://laracasts.com/lessons/reports-and-graphs but that speaks more to the frontend aspect of things, rather than actually building the report data feed.

Any pointers welcome.

Thanks, Steven