MRR is reported as: new MRR + expansion MRR − churn MRR − contraction MRR = net new MRR. The composition matters as much as the total.
MRR is the operating metric of SaaS and subscription D2C. Boards report it monthly; founders track it daily.
Failed payments are a silent MRR killer. Stripe data suggests 5–15% of monthly subscription revenue is at risk from card failures alone. A payment-reminder voice agent typically recovers 60% of those.