This area of the constituent profile displays the constituent's overall giving, as well as the way in which their giving stacks up against the other constituents in your database, over time. If your constituent has pledges, outstanding payments, or soft credits, those will appear in this portion of their profile as well.
The list of Payments Received includes all of the gifts that the constituent has made to your organization. You can click on any of those gifts to open the payment page and see more details of the payment:
From there, the payment page will open up and allow you to see the payment details. To go back to the constituent page, simply click the back arrow in your browser.