A 7-tab Google Sheets / Excel workbook that turns your Subscribers, Churn Log, and Expenses rows into a live Dashboard: MRR, ARR, churn rate, ARPU, CAC, estimated LTV, LTV:CAC ratio, and cash runway in months, all calculated by formula, with built-in alerts for high churn and low LTV:CAC. Includes a 7-page walkthrough guide. No manual math before your next investor update.