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Retention Rate

Step-by-Step Guide to Understanding the Retention Rate

Last Updated October 12, 2023

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Retention Rate

How to Calculate Retention Rate?

The retention rate measures the proportion of total customers that a company was able to retain over a given period, expressed as a percentage.

Since the sustainability of SaaS and subscription companies is contingent on generating long-term recurring revenue, the retention rate is a critical KPI.

The inverse of the retention rate is the churn rate, which refers to the percentage of a company’s existing customers that opted to cancel their subscriptions – i.e. discontinue being a customer – in a given time horizon.

  • High Retention Rate ↔ Low Churn Rate
  • Low Retention Rate ↔ High Churn Rate

With that being said, it would be in the best interests of a company to work on increasing its retention rate (and reducing its churn rate).

The higher the retention rate, the more customers a company has retained within a specific period, whereas the lower the retention rate, the more customers have churned.

Therefore, the customer retention rate is an objective “cause-and-effect” metric for companies to understand how their decisions impact customer behavior.

The process of calculating the retention rate requires three inputs:

  1. Beginning Customers: Number of Customers at Start of Period
  2. New Customers: Number of New Customer Acquisitions in Current Period
  3. Ending Customers: Number of Customers at End of Period

The retention rate formula subtracts the number of new customers from the number of ending customers, which is then divided by the number of beginning customers.

Retention Rate Formula

The formula to calculate the retention rate of a company is as follows.

Retention Rate (%) = (Ending Customers New Customers) ÷ Beginning Customers

Considering the retention rate is the inverse of the churn rate, it can also be calculated by subtracting the churn rate from one.

Retention Rate (%) = 1 Churn Rate (%)

How to Improve Retention Rate?

Companies must continuously improve their product offerings and value proposition to their customers base to improve their retention rate.

When a company’s retention is low, it may be necessary to question the effectiveness of the product offering (i.e. technical capabilities), pricing, sales & marketing, and customer support.

Particularly in highly competitive markets, customers are more susceptible to churn because competitors attempt to find weaknesses in the offerings of other competitors in the market to capitalize on (and steal market share with better products).

Market leaders will most often be the prime targets, so it is necessary to continually reinvest to improve product quality and make strategic adjustments based on historical data, as well as ensure that existing customer needs are met (i.e. by measuring the net promoter score, or “NPS”).

Some other methods to increase the customer retention rate include the following tactics:

  • Upselling and Cross-Selling Techniques → Revenue becomes “stickier” from selling more products to the customer, as the switching costs could disincentivize customers from leaving – i.e. it may be costly or inconvenient to move to a different provider, the product line is synergistic, and the higher likelihood of a customer developing brand loyalty
  • Customer Loyalty Reward Programs → Long-term customers can be rewarded with discounts or reduced pricing for their continued loyalty to the brand, which further makes them less likely to churn.
  • Multi-Year Contracts (B2B) → Compared to a monthly billing plan, securing long-term multi-year contracts with customers can lock in their commitment. However, convincing the client to commit to a long-term agreement can require offering discounted pricing rates as an incentive.
  • Customer Engagement → Customers frequently provide feedback to companies – either on their own accord or by company request, such as via surveys. However, more important than customer engagement is the tangible implementation of post-feedback, as that means customer concerns are truly being heard.

What is a Good Retention Rate?

At the earlier stages of a company’s life cycle, the number of new customers acquired tends to prevail over all else, including profit margins and even customer retention.

The higher a company’s retention rate, the greater the percentage of existing customers retained.

Therefore, a higher retention rate contributes to more recurring revenue – all else being equal.

  • Higher Retention Rate → Lower Customer Attrition Rate and Greater Recurring Revenue
  • Lower Retention Rate → Higher Customer Attrition Rate and Less Recurring Revenue

But as the company continues to mature, patterns usually begin to emerge when assessing customer behavioral trends (i.e. churn vs. retention).

If the company interprets the data correctly and makes the proper implementations – i.e. adjusting the business model, targeting the most profitable end markets, setting prices appropriately on par with competitors, etc. – its churn rate should theoretically decline.

Retention Rate Calculator

We’ll now move to a modeling exercise, which you can access by filling out the form below.

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Customer Retention Rate Calculation Example

Suppose a SaaS company had 100 customers at the start of Year 1, with 20 new customers acquired and 10 churned customers.

  • Beginning Customers = 100
  • New Customers Acquired = 20
  • Churned Customers = 10

Using those assumptions, we can calculate the customers as 110 remaining at the end of Year 1 as 110.

In the subsequent period, Year 2, the ending customer count from Year 1 is the number of beginning customers.

As for the new customers and churn assumptions, the new customers acquired are double the previous year, while the churned customers are half the prior year.

  • Beginning Customers = 110
  • New Customers Acquired = +40
  • Churned Customers = –5

Since we now have all the necessary inputs to calculate the customer retention rate, we can enter the appropriate figures into the formula from earlier.

  • Retention Rate – Year 1 = (110 – 20) ÷ 100 = 90.0%
  • Retention Rate – Year 2 = (145 – 40) ÷ 110 = 95.5%

Retention Rate Calculation Example

From Year 1 to Year 2, our company’s retention rate grew from 90.0% to 95.5%, which can be confirmed by adding the percentage to the churn rate.

The sum of the retention rate and churn rate equals 100% (or 1), confirming our calculations are correct.

The churn rate is equal to the number of lost customers in the current period, divided by the beginning customer count.

  • Churn Rate – Year 1 = 10 ÷ 100 = 10.0%
  • Churn Rate – Year 2 = 5 ÷ 110 = 4.5%

By adding the retention and churn rates together, we arrive at 100% for both periods, reflecting the inverse relationship between the two metrics.

Retention Rate Calculator

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