How do you calculate LTV?
A workable B2B formula: average annual revenue per customer times your gross margin times the average customer lifespan in years. At 6,000 euros annual revenue, 70 percent margin and 4 years lifespan, your LTV is 16,800 euros.
Add your CAC too and the calculator shows your LTV:CAC ratio. That ratio is the real health check on your growth.