What's a good way to measure churn in a customer base? Like an email list specifically? Feels like it should be something like sqrt((subs+unsubs)²/(subs-unsubs)²)
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Eg why do you care about churn? Are you measuring it for curiosity? Trying to predict income? Etc
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Replying to @calcsam
I’m not measuring it at all, just idly speculating
7:51 PM - 4 Aug 2020
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