Net MRR Calculator
How much of what you won only replaced losses.
Net new MRR
$4,600
9.2% growth to $54,600
46.5% of everything you won this month went to replacing what left. That ratio is the clearest measure of whether growth is compounding or being spent on standing still.
How the Net MRR Calculator works
The share of new MRR that goes to replacing what left is the clearest measure of whether growth is compounding or being spent on standing still. It is also the number that never appears on a growth dashboard.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
What is net new MRR?
New plus expansion MRR, less contraction and churned MRR. It is the actual change in the recurring base over a period.
What is an MRR waterfall?
The breakdown of a period's MRR movement into new, expansion, contraction, churn and reactivation. It is the single most useful report a subscription business can produce.
Why does the replacement ratio matter?
Because if 60% of new MRR replaces churn, you are running to stand still and only 40% of acquisition spend produces growth. That reframes retention as a growth lever rather than a defensive one.
How does this relate to the quick ratio?
Directly — the quick ratio is gained MRR divided by lost MRR. The waterfall shows the components; the ratio summarises them.