MRR Movement Waterfall Visualizer

Monthly Recurring Revenue doesn't move in one direction — it goes up from new customers and expansion, and down from contraction and churn, all in the same month. A single MRR number hides that movement. This waterfall shows it: it takes your Beginning MRR and walks it forward, bar by bar, through each component, until it lands on your Ending MRR.

This is a visualizer, not a calculator — it doesn't compute MRR for you. You supply the six components, and the chart makes the bridge between Beginning and Ending MRR visible so you can see where the change actually came from.

Enter Beginning MRR (the MRR you started the period with) and Ending MRR (the MRR you ended with), along with the four components that explain the difference: New MRR, Expansion MRR, Reactivation MRR, Contraction MRR, and Churned MRR.

The chart draws Beginning and Ending MRR as full bars, and each component as a floating bar that steps the running total up (New, Expansion, Reactivation) or down (Contraction, Churned) between them.

A balance check compares Beginning + New + Expansion + Reactivation − Contraction − Churned against the Ending MRR you entered, and flags the difference if it falls outside a tolerance you control.

• The first and last bars (Beginning MRR, Ending MRR) start from zero — their height is the full MRR value.
• The bars in between are floating: each one starts where the running total left off and moves up or down by that component's amount. Green bars (New, Expansion, Reactivation) push the total up. Red bars (Contraction, Churned) pull it down.
• If your inputs balance exactly, the top of the last floating bar (after Churned) lines up with the top of the Ending MRR bar. A visible gap between them is the balance check catching a mismatch.

• Net New MRR (New + Expansion + Reactivation) shows how much MRR was added before any losses.
• Gross Churned + Contraction shows how much MRR was lost, independent of how much was gained.
• Net MRR Change (Ending − Beginning) is the actual movement for the period — comparing it against Net New MRR shows how much of your gross growth was offset by losses.
• These are factual readouts of the numbers you entered — the chart does not infer causes (e.g. why churn happened) or predict what next month will look like.

The chart uses a standard cascading waterfall: Beginning and Ending MRR are drawn as full bars from zero, and each component bar spans from the running total before it to the running total after it. The balance check computes Beginning + New + Expansion + Reactivation − Contraction − Churned and compares that to your entered Ending MRR. You choose the tolerance — either a fixed dollar amount or a percentage of Ending MRR — and the exact check being applied is shown next to the result so nothing is hidden.

This visualizer only displays the six components you enter — it does not calculate MRR from billing data, does not forecast future MRR, and does not explain why any component moved. Contraction and Churned MRR should be entered as positive magnitudes (the amount lost); the chart subtracts them. The balance check only confirms internal consistency between your six numbers — it cannot tell you whether any individual component is itself correct. Manual entry only in this version; CSV/file upload, PNG/SVG export, and embed are not yet available.

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