Web analytics is really useful to learn a lot of things on your visitors' behavior. But at the end, one question remains: Do they generate revenue?
In order to track your online sales, Google Analytics provide a rich platform that lets you do just that. Advanced options and configurations allow you to track taxes, types of item purchased, numbers and so on.
While there's a quite complex job of configuration, the reporting part is quite easy. Once you defined what you need, create and configure a dashboard is the easy part.
Several out-of-the-box widgets are available for you to add from a single click like revenue, ROI and transactions. Otherwise, you can create as many different widgets as required using the Advanced Editor.