GRR and NRR measure different failure modes
GRR and NRR both track what happens to revenue from existing customers, but they are not interchangeable. GRR puts a ceiling on the problem: it can never exceed 100%, because it measures what you kept before adding anything new. NRR can exceed 100% when expansion outpaces loss. Conflating the two hides whether you have a retention problem, an expansion problem, or both.The formulas side by side
Both calculations start with the same cohort: recurring revenue at the beginning of a period.
Gross Revenue Retention (GRR):GRR = (Beginning ARR - Churned ARR - Downgraded ARR) / Beginning ARR × 100
Net Revenue Retention (NRR):NRR = (Beginning ARR - Churned ARR - Downgraded ARR + Expanded ARR) / Beginning ARR × 100
| Scenario | Beginning ARR | Churn + Downgrades | Expansion | GRR | NRR |
|---|---|---|---|---|---|
| A | $1,000,000 | $100,000 | $0 | 90% | 90% |
| B | $1,000,000 | $100,000 | $150,000 | 90% | 105% |
| C | $1,000,000 | $200,000 | $250,000 | 80% | 105% |
What each metric diagnoses
Low GRR points to a product, customer success, or fit problem. Customers are leaving or reducing spend. No amount of expansion motion fixes this permanently because you are refilling a leaking bucket. Upsell and cross-sell will produce growth for a time, but you cannot sustainably expand customers who are already dissatisfied.
Low NRR in the presence of strong GRR means your retention base is solid but your expansion motion is weak. Customers are staying, but you are not capturing more of their spend over time. The fix is different: invest in expansion playbooks, pricing tiers, or adjacent product lines.
Why you need both
A company reporting only NRR can look healthy while GRR quietly deteriorates. The reverse is also true: a company reporting only GRR may appear stable while leaving significant expansion revenue on the table. Track both, report both, and investigate any divergence between them.
For the underlying drivers of each metric, see Gross Revenue Retention, Net Revenue Retention, and Churn Rate.
Frequently Asked Questions
Can NRR be higher than 100%?
Yes. NRR above 100% means expansion revenue from existing customers exceeded the revenue lost to churn and downgrades. This is the hallmark of a strong land-and-expand business model and is the primary driver of efficient growth in enterprise SaaS.
Which metric should take priority, GRR or NRR?
They answer different questions, so neither takes priority in isolation. GRR reveals the underlying health of your customer base before expansion activity. NRR reveals whether your expansion motion is strong enough to offset losses. A company with strong NRR but weak GRR is growing through upsell while losing the base. That is a fragile position.
How do GRR and NRR differ in what they signal to investors?
Investors use GRR to evaluate churn risk and NRR to evaluate growth potential. A company with high GRR and NRR above 100% demonstrates both stability and organic revenue growth from the installed base. GRR below a certain level raises concerns about product-market fit regardless of NRR.
Put these metrics to work
ORM builds custom revenue forecast models that turn concepts like gross vs net revenue retention into prescriptive action for your team.
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