How to determine the $value$ of your email subscriber? Formula included.

Hey guys, hope you're doing great! Some say that each $1 spent in email marketing earns more than $40 in sales, and some say that each subscriber earns you $1/month. On the one hand these are good numbers, but on the other these are sooo average - that's why you can't tell how does it work and look for your own email marketing business. I would like to provide you with some good info from Forester Research - they published a formula which will help you to determine the value of each and every email subscriber of yours. Please see below, test and enjoy!