Accounting Churn Rate (Per-Unit) Calculator Examples
Worked examples showing how opening units, additions, closing units, and reporting length affect churn and retention results.
These examples show how to reconcile per-unit churn in different reporting situations. Each uses the same approach: calculate lost units first, then measure those losses against the opening base.
Quarterly Subscription Churn With Net Growth
Positive net growth can coexist with meaningful gross churn.
Input Summary
Opening units
1,000 subscriptions
New units added
180 subscriptions
Closing units
1,050 subscriptions
Reporting period
3 months
Calculation Breakdown
- 1Churned unitsmax(0, 1,000 + 180 - 1,050)130 units
- 2Gross churn130 / 1,000 × 10013.00%
- 3Monthly equivalent(1 - pow(0.87, 1 / 3)) × 1004.54%
- 4Net unit change1,050 - 1,000+50 units
Result Summary
Net unit change
+50 units
Accounting Churn Rate (Per-Unit) Calculator
The business lost an estimated 130 subscriptions, or 13.00% of opening subscriptions, while growing its total base by 50 subscriptions.
Two-Month Account Decline
A negative net result indicates that churn exceeded additions.
Input Summary
Opening units
500 accounts
New units added
40 accounts
Closing units
490 accounts
Reporting period
2 months
Calculation Breakdown
- 1Churned unitsmax(0, 500 + 40 - 490)50 units
- 2Gross churn50 / 500 × 10010.00%
- 3Opening retention(500 - 50) / 500 × 10090.00%
- 4Net unit change490 - 500-10 units
Result Summary
Net unit change
-10 units
Accounting Churn Rate (Per-Unit) Calculator
Estimated churn is 50 accounts, with a 10.00% period churn rate and a net decline of 10 accounts.
Six-Month Seat Portfolio Growth
A longer reporting period can have a moderate total churn rate but a lower monthly equivalent.
Input Summary
Opening units
2,400 seats
New units added
600 seats
Closing units
2,700 seats
Reporting period
6 months
Calculation Breakdown
- 1Churned unitsmax(0, 2,400 + 600 - 2,700)300 units
- 2Gross churn300 / 2,400 × 10012.50%
- 3Monthly equivalent(1 - pow(0.875, 1 / 6)) × 1002.20%
- 4Net unit change2,700 - 2,400+300 units
Result Summary
Net unit change
+300 units
Accounting Churn Rate (Per-Unit) Calculator
The portfolio had 12.50% gross churn over six months, equivalent to approximately 2.20% per month, while growing by 300 seats.
How to Read Your Results
Gross unit churn shows the percentage of the opening base estimated to be lost during the selected period.
Churned units are a reconciliation result, not necessarily a list of individually identified cancellations.
Opening unit retention is the share of the starting base estimated to remain active.
Monthly equivalent churn is most useful for comparing periods with different durations.
Net unit change includes additions and churn, so it can be positive even when gross churn is high.
Assumptions & Important Notes
- All counts refer to the same unit type and active-status definition.
- New additions are recorded separately from the opening base.
- The stated reporting period covers the interval between the opening and closing counts.
- The monthly equivalent rate assumes evenly compounded churn.
Related Examples
Frequently Asked Questions
Can a business grow while its churn rate is high?
Yes. Net unit growth can be positive when additions exceed churned units. Gross churn still measures losses from the opening base.
Should I use a monthly or quarterly churn rate?
Use the period that matches your reporting process, then use the monthly equivalent when comparing periods of different lengths.
Can this calculation be used for customers, seats, and subscribers?
Yes, provided the unit definition is consistent at the opening and closing dates and additions are tracked separately.
Why is the calculated churn higher than the net decline?
Net decline is offset by new additions. Gross churn isolates estimated losses before that offset.
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