Tracking employee turnover and retention is essential for any organisation aiming to maintain a stable, engaged, and high-performing workforce. By monitoring the right metrics, businesses can identify patterns early, uncover potential issues such as disengagement or skill gaps, and implement proactive strategies to improve job satisfaction, engagement, and career development.
What Is Employee Turnover?
Employee turnover indicates the number of employees who leave an organisation, whether voluntarily or involuntarily. Voluntary departures may occur when staff accept better offers from competitors, while involuntary turnover can result from layoffs or terminations due to performance issues.
Why Employee Turnover Matters
Replacing staff comes with high direct costs. These include recruitment expenses such as job postings, agency fees, and background checks, as well as onboarding and training costs to get new hires up to speed. Additionally, temporary staffing or overtime for existing employees during transitions can increase operational expenses.
Beyond the immediate financial outlay, turnover has several indirect costs that can be harder to measure but are equally impactful:
- Lower Morale: Frequent departures can create uncertainty and anxiety among remaining staff, leading to disengagement and reduced motivation.
- Impact on Employer Brand: A reputation for high turnover can make it more challenging to attract top talent, as prospective employees may perceive instability or poor management.
- Productivity Loss: Teams often experience decreased efficiency when colleagues leave, particularly when institutional knowledge is lost or workloads are temporarily redistributed.
Why Measuring Employee Turnover Is Important
Monitoring employee turnover is essential, as being unable to identify high turnover early can be costly and disrupt overall business performance. HR professionals and recruitment specialists use turnover metrics to assess the effectiveness of hiring strategies and pinpoint areas for improvement in recruitment and workforce management.
High turnover rates often signal underlying issues such as low job satisfaction, ineffective hiring practices, or strong competition for talent. On the other hand, low turnover rates reflect successful recruitment strategies, a positive company culture, and strong support for employee engagement and development.
What Is Considered a High Employee Turnover Rate?
A high employee turnover rate occurs when a larger-than-expected proportion of staff leave an organisation within a specific period. What qualifies as “high” can vary widely depending on the industry, role, and geographic location.
Different sectors and countries have different benchmark turnover rates, so it’s important to evaluate your organisation’s turnover in context rather than using a one-size-fits-all standard.
Know the Employee Turnover and Retention Metrics to Track
HR staff and organisations can calculate and keep track of employee turnover and retention through the following metrics:
1. Overall Turnover Rate
Organisations typically express employee turnover as a percentage. This is calculated by dividing the total number of employees who exit during a specific period, such as a year, by the average number of employees in the organisation over the same timeframe.
This is how to measure the employee turnover rate:
Employee Turnover Rate (%) = (Number of Employees Who Left in a Certain Period ÷ Average Number of Employees in the Same Given Period) × 100
Example:
If 5 employees out of a workforce of 200 leave in a year, the turnover rate would be:
5 ÷ 200 × 100 = 2.5%
This calculation helps HR teams track workforce stability and compare performance against industry benchmarks.
2. Overall Turnover Rate
Organisations typically express employee turnover as a percentage. This is calculated by dividing the total number of employees who exit during a specific period, such as a year, by the average number of employees in the organisation over the same timeframe.
This is how to calculate the turnover rate:
Turnover Rate (%) = (Number of Employees Who Left in a Certain Period ÷ Average Number of Employees in the Same Given Period) × 100
Example:
If 5 employees out of a workforce of 200 leave in a year, the turnover rate would be:
5 ÷ 200 × 100 = 2.5%
This calculation helps HR teams track workforce stability and compare performance against industry benchmarks.
3. Employee Happiness/Satisfaction
Measuring employee happiness or satisfaction is essential for understanding engagement levels and predicting potential turnover. Two widely used metrics are the Employee Net Promoter Score (eNPS) and the Employee Satisfaction Index (ESI). Both typically begin with employee surveys that collect feedback on workplace experience.
a. Employee Net Promoter Score (eNPS)
Employees are asked to rate their likelihood of recommending the organisation as a workplace on a scale of 1 to 10. Respondents are classified as:
- Promoters: Scores of 9–10
- Passives: Scores of 7–8
- Detractors: Scores of 0–6
The eNPS is calculated by subtracting the percentage of detractors from the percentage of promoters:
eNPS = Promoters (%) − Detractors (%)
Example:
If 50% of employees are promoters and 20% are detractors, the eNPS would be:
50−20= 30%
A positive score indicates more employees are likely to advocate for the company, while a negative score highlights engagement concerns.
b. Employee Satisfaction Index (ESI)
Similar to the eNPS, employees will also need to rate their overall satisfaction on a scale of 1 to 10. To calculate, take the average score, divide it by the highest possible score (10), and multiply by 100 to get a percentage:
ESI (%) = (Average Score ÷ Maximum Score) × 100
Example:
If the average employee satisfaction score is 8 out of 10:
(8 ÷ 10) × 100 = 80%
An ESI of 80% indicates strong employee satisfaction, whereas lower percentages may signal disengagement and potential turnover risks.
Regularly tracking these metrics helps HR teams implement targeted initiatives to boost morale, improve engagement, and reduce preventable attrition.
4. Voluntary Turnover Rate
Calculating the voluntary turnover rate helps organisations identify underlying issues that may be prompting employees to seek opportunities elsewhere. This metric uses the standard turnover formula but focuses specifically on voluntary resignations:
Voluntary Turnover Rate (%) = (Number of Voluntary Departures ÷ Average Number of Employees in the Same Given Period) × 100
Frequent voluntary departures can signal problems related to job fit, recruitment practices, career progression, or internal promotion pathways. For instance, hiring individuals who are either underqualified or overqualified for their roles can lead to dissatisfaction and early exits. Likewise, if experienced or long-serving employees leave in higher numbers, it may indicate limited growth opportunities within the organisation.
As such, careful examination of the factors contributing to voluntary turnover is essential. Exit interviews, employee feedback surveys, and performance reviews can provide valuable insights into why employees choose to leave. Patterns may emerge around management style, workload, compensation, work-life balance, or workplace culture.
5. Involuntary Turnover Rate
Involuntary turnover measures employees who leave due to termination, layoffs, or redundancy initiated by the organisation. It is calculated similarly to the overall turnover rate:
Involuntary Turnover Rate (%) = (Number of Voluntary Departures ÷ Average Number of Employees in the Same Given Period) × 100
While no organisation is entirely shielded from economic or external factors that may lead to layoffs, monitoring involuntary turnover remains important. In some cases, an unusually high or rising rate compared to similar organisations may indicate weaknesses in hiring decisions, onboarding effectiveness, or role alignment. For instance, managers may be recruiting candidates whose skills do not accurately match job requirements.
Therefore, when involuntary turnover rates are elevated, it is often a signal that recruitment strategies, candidate screening, and onboarding practices need to be reviewed and strengthened.
6. Average Length of Employment
Knowing the average length of time employees remain with an organisation provides valuable insight into overall employee satisfaction and stability. HR professionals can also analyse this metric across different departments or employee groups to identify specific areas that may require attention or improvement.
Average Employee Tenure = Total Length of Service of All Employees ÷ Total Number of Employees
Generally, a higher average tenure suggests stronger retention and a more satisfied workforce.
7. New Employee Satisfaction Rate
Measuring the new employee retention rate could be a way to evaluate whether your recruitment and onboarding strategies are effective in retaining talent. This metric focuses on how well the organisation supports new hires during their first months and helps identify potential gaps that may lead to early departures.
To measure this, organisations can calculate the proportion of employees who remain with the organisation beyond their first year (or another defined period). It is calculated by dividing the number of new employees who stay by the total number of new hires during the same timeframe:
New Employee Satisfaction Rate (%) = (New Employees Departing ÷ Total Number of Employees Hired in the Period) × 100
Example:
If a company hires 50 new employees in a year and 10 leave within their first 12 months, the new employee satisfaction rate would be:
(10 ÷ 50) × 100 = 20%
High turnover among new hires not only represents a financial loss, since the organisation invests in recruitment and training, but can also affect the company’s reputation and ability to attract talent. Addressing this requires a close look at recruitment processes to ensure candidates match their roles and a strong onboarding programme that helps new employees feel prepared and welcomed.
8. Turnover Rate by Department, Manager, or Role
Analysing turnover by department, manager, or role allows HR teams to identify specific areas where retention efforts and resources should be focused. While some industries naturally experience higher turnover rates, such as information technology, hospitality, and healthcare, breaking down turnover by department or role can reveal more targeted insights.
For example, within the hospitality sector, turnover may be concentrated in front-line service roles, whereas in IT, it might be more prevalent among software developers or project managers. Similarly, turnover patterns under specific managers can indicate leadership or engagement issues that need to be addressed.
By identifying these high-risk areas, HR can implement targeted retention strategies, such as:
- Leadership training and support for managers whose teams have higher attrition.
- Tailored engagement programmes for roles or departments with recurring turnover issues.
- Career development and succession planning to provide clear growth opportunities for employees in critical positions.
- Adjustments to compensation or benefits to remain competitive in high-turnover roles.
Regularly reviewing turnover data at this granular level helps organisations make informed decisions, ensuring interventions are focused where they will have the greatest impact. This approach not only reduces overall turnover but also strengthens team stability, morale, and productivity across the company.
9. Retention Rate for Star Employees
Not all turnover has the same impact. Losing high-performing or “star” employees is particularly costly because they typically drive the organisation toward its goals. To account for this, organisations can weigh the departure of top performers more heavily when calculating turnover and retention metrics.
Adjusted Turnover Rate for Star Employees (%) = (Total Departure of Average Performers + (Top Performer Departures × Weight)) ÷ Total Number of Employees × 100
Example:
In a company with 150 employees, 2 out of 10 departing employees were top performers. Therefore, the adjusted turnover rate can be calculated as:
Adjusted Turnover Rate = ((8 + (2 × 2)) ÷ 150) × 100 = 8%
Effectively retaining star employees involves strategies similar to those used for the wider workforce, but with added emphasis on recognition, professional development and clear advancement paths. By prioritising the retention of high-value employees, organisations can maintain productivity, protect institutional knowledge, and ensure continued progress toward strategic objectives.
10. Retention Rate for Low-Performing Employees
Conversely, retaining too many low-performing employees can hinder overall organisational performance. When these employees leave, it can create opportunities for more productive and engaged staff to excel.
Before taking drastic steps, however, HR should determine whether low performance stems from skill gaps or inadequate support. Implementing performance improvement plans with clear expectations, training, and coaching can often elevate employee performance, improve engagement, and foster loyalty, allowing organisations to reduce turnover without incurring unnecessary costs.
Discover Employee Retention Strategies by Partnering with Asia-Link
With the data you have gathered on employee turnover, retention and satisfaction, having a strategy to ensure your retention rate is high is crucial. This is where partnering with a local employment agency like Asia-Link can make a difference.
Asia-Link is a trusted HR solutions provider that supports organisations in Singapore with end-to-end recruitment strategies, workforce planning, and employee management solutions. With our expertise, companies can attract the right talent, align hiring with long-term business goals, and implement initiatives that increase engagement and reduce preventable turnover.
By leveraging Asia-Link’s tailored solutions, organisations can identify high-risk areas, improve onboarding and training programmes, and create a workplace culture that encourages loyalty and productivity.
For more workforce management and recruitment insights, check out our guide on how to use HR data for strategic staffing and how to build a strong employer brand.
