Subscription Commerce Analytics Path · Mission 21 of 25Master

12-month cohort decay curve

Event-driven cohort survival curve. Practice deriving subscription state at multiple time-offsets (m3 / m6 / m12) by replaying events through a recursive-style state machine, grouping by signup-month cohort, and producing the decay matrix that anchors every subscription investor's diligence pack.

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The Brief

You'll practice

Cohort survivalGenerated time-pointsDecay
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All 25 missions in Subscription Commerce Analytics Path ↓
  1. 1. Snapshot inventory by plan
  2. 2. Active subscribers by country
  3. 3. MRR by plan family
  4. 4. Q3 2024 acquisition by channel
  5. 5. Q1 2026 cancelled subscriptions
  6. 6. Monthly active subscriber trend
  7. 7. 90-day cohort retention
  8. 8. Blended revenue: subs MRR plus one-time orders
  9. 9. ARPU by plan
  10. 10. Skip rate by plan family
  11. 11. First event per subscription
  12. 12. Event-derived current state
  13. 13. Find late-arriving events
  14. 14. Subscriptions with multiple skips
  15. 15. Plan migrations Q1 2026
  16. 16. MRR walk components — Q1 2026
  17. 17. Subscriber-vs-one-time blended LTV (matched cohort)
  18. 18. NRR by signup cohort
  19. 19. Churn forensics by reason_code (Q1 2026)
  20. 20. Pause-shaped cancellations cleanup
  21. 21. 12-month cohort decay curve
  22. 22. Resurrection identification
  23. 23. Snapshot-vs-event drift report
  24. 24. Subscriber LTV with one-time spillover
  25. 25. THE MRR WALK — opening + new + expansion − contraction − churn + resurrection = closing