Customer Churn & Retention Rate
Customer Churn & Retention Rate: returns retention as 100 minus the supplied churn percentage, and observed monthly retention as retained divided by start; for example, 5% churn and 95 of 100 retained both give 95% retention.
About this customer churn & retention rate
returns retention as 100 minus the supplied churn percentage, and observed monthly retention as retained divided by start; for example, 5% churn and 95 of 100 retained both give 95% retention Enables rapid evaluation of advertising efficiency and campaign economics without transmitting proprietary media budget figures.
Metrics formula & attribution logic
The execution engine processes input tokens and applies transformations in the browser sandbox. Specifically, Calculation and parameter relationship: retentionPercent=100−churnPercent; monthlyRetention=100×retained/start
Worked campaign analytics example
Scenario: Use the following data to evaluate Customer Churn & Retention Rate
Sample input:
Illustrative output:
Input parameters & edge case boundaries
Operational constraints and validation boundaries: Parameter domains and units: churnPercent ∈ [0,100]; retained,start ∈ ℤ; 0 ≤ retained ≤ start; start = 0 ⇒ monthlyRetention = null. Results use binary64 floating-point numbers unless BigInt is stated. Result cards show up to 10 significant digits; raw output retains the serialized value. A null ratio means the model has no meaningful finite value for that ratio; it is not zero.
Marketing metrics in Customer Churn & Retention Rate implement standard industry formulas (IAB/MRC). External ad platform reporting may differ slightly due to time zone cutoffs or attribution windows.
Local metrics evaluation boundary
Formula calculations and numeric evaluations in Customer Churn & Retention Rate run synchronously in the browser JavaScript engine with zero server telemetry.
Advertising industry standards & specifications
Interactive Advertising Bureau (IAB) measurement guidelines and Media Rating Council (MRC) reporting standards:
- CZOA formula and input assumptions documented on this page; no single governing external standard
- ECMAScript 2026, §6.1.6.1 Number Type
Customer Churn & Retention Rate verification · Audit standards
How to use it
- Select “Raw JSON / Advanced” and paste the sample input.
- Click “Run locally”.
- Compare “Raw Output Data” with the example; revise inputs when an error is shown.
Frequently asked questions
Which calculation does Customer Churn & Retention Rate perform?+
Operational requirements for "Which calculation does Customer Churn & Retention Rate perform?" are verified in local memory during execution of Customer Churn & Retention Rate.
What input can I paste into Customer Churn & Retention Rate?+
Paste the following input exactly, preserving JSON field names where present: {"churnPercent":5,"retained":950,"start":1000}
Which parameter limits and units apply to Customer Churn & Retention Rate?+
Parameter domains and units: churnPercent ∈ [0,100]; retained,start ∈ ℤ; 0 ≤ retained ≤ start; start = 0 ⇒ monthlyRetention = null.
What result does this Customer Churn & Retention Rate example produce?+
The example produces these values in the raw output: { "churnPercent": 5, "retentionPercent": 95, "monthlyRetention": 95 }