Calculating your email list growth rate is straightforward. Use the following formula: Growth Rate (%) = [(Number of New Subscribers - Number of Unsubscribes) / Total Subscribers at the Start] * 100 For example, if you started the month with 1,000 subscribers, gained 150 new ones, and lost 50, your growth rate would be: Growth Rate (%) = [(150 - 50) / 1000] * 100 = 10%