SQLQuokkaSQLQuokkaStripe's finance team tracks processed volume month over month. Only payments with `payment_status = 'succeeded'` count as revenue. Write an SQL query that returns one row per calendar month that has successful payments, with columns: `revenue_month` (formatted as `YYYY-MM`), `revenue` (sum of successful `amount`), `prev_revenue` (the previous month's revenue, NULL for the first month) and `growth_pct` (percentage change from the previous month, rounded to 2 decimal places, NULL for the first month). Order the results by `revenue_month` ascending.
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