ARPU รายสัปดาห์

WITH kpi AS (
  SELECT
    -- Select the week, revenue, and count of users
    ___ :: ___ AS delivr_week,
    ___ AS revenue,
    ___ AS users
  FROM meals AS m
  JOIN orders AS o ON m.meal_id = o.meal_id
  GROUP BY delivr_week)

SELECT
  delivr_week,
  -- Calculate ARPU
  ROUND(
    ___ :: ___ / ___,
  2) AS arpu
FROM kpi
-- Order by week in ascending order
ORDER BY ___ ASC;