One of the advantages of SaaS businesses is that you build a customer base that should not only continue to renew over time but also expand if you are delivering value. The opposite is the dreaded revenue churn. What is it and how to measure it is the topic of episode #2 of the #AskAVC podcast. You can also check out the blog post based on this video, on my personal website. 

Disclaimer: This podcast is based on the #AskAVC YouTube channel (youtube.com/askavc) - hence, the occasional visual references.