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Revenue Analysis by Cohort
Write a query to calculate the monthly recurring revenue (MRR) retention for each customer cohort. A cohort is defined by the month of their first subscription.
TABLE: SUBSCRIPTIONS
- id (int)
- user_id (int)
- start_date (date)
- amount (decimal)
- status (varchar)
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Performance Overview
Last 30 Days142
Problems Solved
↑ 12% vs last week
68%
Success Rate
↑ 4% vs last week
28h
Hours Practiced
Avg 1.2h / day
Problems solved per day