# Change Failure Rate (CFR)

## Change Failure Rate Metric Definition

This measures the percentage of deployments causing a failure in production.

## Change Failure Rate Formula

{% code overflow="wrap" %}

```
Change Failure Rate % = [Number of Production Deployments Caused An Incident] / [Number of Production Deployments] * 100
```

{% endcode %}

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### LEARN MORE

{% content-ref url="/pages/C6ejvicsVyZF52dkYr4e" %}
[Failure Detection (For Change Failure Rate & MTTR)](/deployment-analytics/failure-detection-for-change-failure-rate-and-mttr.md)
{% endcontent-ref %}

**BLOG POST -** [DORA Metrics Tracking: How to Effectively Detect Production Failures](https://oobeya.io/blog/dora-metrics-tracking-how-to-effectively-detect-production-failures/)

> Detecting production failures is the most critical and challenging component of tracking DORA metrics. While it can be challenging, organizations can overcome these challenges by using the right tools and following best practices.


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