Use Summary Formulas in Your Reports Unit - Salesforce Trailhead (BAS)
You'll be completing this project in your own personal Salesforce environment. Choose from the dropdown menu, then click Launch to get started. If you use Trailhead in a language other than English, set the language of your Trailhead Playground to English before you attempt this project. Want to find out more about using hands-on orgs for Trailhead learning? Check out the Trailhead Playground Management module.