Steps to take in your Google Analytics 4 account: Step 1) Navigate to Admin, then Audiences. Step 2) Click New Audience, then Create a custom audience. Step 3) Give your Audience a name (New Users, Returning Users). Step 4) Select Add a new condition. Step 5) Select the dimension New/returning. Step 6) Add a filter (contains new or returning). Step 7) Save your audience. Steps to take in Looker Studio: Step 1) Click on Insert and add a Pie Chart. Step 2) Under dimension, select Audience Name. Step 3) Under metric, select Total Users. Step 4) If you have more than two audiences, add a filter and narrow down to the specific Audience Names.