Churn Rate — Plain English Definition + Examples

Definition

Churn rate is the percentage of customers (logo churn) or revenue (revenue churn) lost in a given period — usually monthly or annually — calculated as (customers or revenue lost ÷ starting customers or revenue) × 100.

In day-to-day European MICE and procurement work, churn rate sits inside a broader workflow that includes the brief, the longlist, the shortlist, the contract negotiation, and the post-event reconciliation. Understanding it in isolation is not enough — what matters is how it interacts with the other levers a planner or procurement team can pull. The definition above is the textbook version; the sections below explain how it actually behaves in real sourcing.

Why Churn Rate matters

Churn is the single biggest determinant of SaaS unit economics. A 2% monthly churn rate compounds to ~22% annual churn, halving customer lifetime compared to a 1% monthly rate. For MICE buyers, vendor churn rate is a leading indicator of product satisfaction and vendor stability.

The practical takeaway: planners and procurement teams who get churn rate right typically see measurable improvements in either cost, risk exposure, or cycle time — sometimes all three. Teams who default to the supplier's standard language usually leave 5-15% of total event value on the table, often without realizing it. The skill is recognising churn rate when it appears, knowing the market-standard range, and treating any deviation from that range as a negotiation point — not a take-it-or-leave-it.

Example

A sourcing platform starts the year with 380 customers; loses 27 over 12 months. Logo churn rate = 27 / 380 = 7.1% annually. Combined with €5,800 average ACV, this implies ~14-year average customer lifetime — strong, well above the SaaS median.

This example is representative of mid-to-large European corporate MICE — pharma, finance, tech, professional services. Smaller events (under 50 attendees) and very large events (1,000+) often follow different conventions, but the underlying logic of churn rate stays the same. The numbers move, the principle doesn't.

Where Churn Rate appears in contracts

For buyers procuring SaaS, asking about the vendor's churn rate is reasonable due diligence. A vendor with under 8% annual churn is durable; 8-15% is normal; above 15% is concerning. Below 5% is best-in-class enterprise SaaS.

When reviewing a hotel proposal or contract draft, scan for churn rate early — it's often easier to negotiate before the supplier has anchored on their preferred position. Easy RFP surfaces these terms in every comparison view so planners can spot deviations from market-standard ranges at a glance, rather than reading 14-page proposals line by line.

Related terms

Deeper reading