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Introduction
Churned customers
6. Percentage of churned customers in weekly cohorts – exercise
Customer retention charts
Summary

Instruction

Perfect! Let's try another exercise.

Exercise

Find the percentage of churned customers in monthly signup cohorts. Show the following columns: year, month, all_customers, churned_customers, and churned_percentage. Define churned customers as those who have not ordered anything in the last 60 days. Sort the results by year and month.

Stuck? Here's a hint!

Calculate the churned_percentage column as:

COUNT(CASE WHEN CURRENT_DATE - last_order_date > INTERVAL '60' day THEN customer_id END) * 100.0 / COUNT(customer_id) AS churned_percentage