1. Burn Ratio = Net Burn / Net New ARR
2. CLTV = ARPU × Gross Margin × Customer Lifetime
3. CAC = Sales & Marketing Expenses / New Customers Acquired
4. LTV:CAC ratio = LTV / CAC
5. CAC payback period = CAC / (ARPU × Gross Margin)
6. Gross Retention Rate = ((Beginning MRR - Churned MRR - Downgrade MRR) / Beginning MRR) * 100
7. Net Retention Rate = ((Beginning MRR + Expansion MRR - Churned MRR - Downgrade MRR) / Beginning MRR) * 100
8. Churn Rate = (Customers Lost During Period / Total Customers at Start of Period) * 100
9. SaaS Magic Number = (New ARR × 4) / Sales & Marketing Spend
10. ⁠Rule of 40 = Revenue Growth % + EBITDA Margin %
11. ⁠Gross margins = (Revenue - COGS) / Revenue
12. ARR = MRR × 12
13. ⁠ARR growth = (Current ARR - Previous ARR) / Previous ARR
14. ARPU = Total Revenue / Number of Users
15. ACV = Total Contract Value / Contract Duration
16. Customer growth = (New Customers - Lost Customers) / Total Customers
17. Enterprise value = Equity Value + Debt - Cash + Preferred Stock
18. Equity value = Enterprise Value - Debt + Cash - Preferred Stock
19. EBITDA margins = EBITDA / Revenue