3 ms·

Don't forget the churn factor.

• jacquesm 16y ago
  The figure to measure is 'retention'. When cancellations equal signups (in this case 10 per day) you will stop growing. With the 10 signups per day as a base and a retention of 6 months on average that would mean that you stop growing after about a year and you'll end up with 1800 active accounts at that point for $36K per month in income.