function calculateTurnoverRate() {
var beginStaff = parseFloat(document.getElementById("beginStaff").value);
var endStaff = parseFloat(document.getElementById("endStaff").value);
var separations = parseFloat(document.getElementById("separations").value);
var errorBox = document.getElementById("errorBox");
var resultBox = document.getElementById("resultBox");
var turnoverResult = document.getElementById("turnoverResult");
var averageStaffResult = document.getElementById("averageStaffResult");
errorBox.style.display = "none";
resultBox.style.display = "none";
if (isNaN(beginStaff) || isNaN(endStaff) || isNaN(separations) || beginStaff < 0 || endStaff < 0 || separations < 0) {
errorBox.style.display = "block";
return;
}
var averageEmployees = (beginStaff + endStaff) / 2;
if (averageEmployees === 0) {
errorBox.innerText = "Average employee count cannot be zero.";
errorBox.style.display = "block";
return;
}
var turnoverRate = (separations / averageEmployees) * 100;
turnoverResult.innerText = turnoverRate.toFixed(2) + "%";
averageStaffResult.innerText = "Based on an average workforce of " + averageEmployees.toFixed(1) + " employees.";
resultBox.style.display = "block";
}
How to Calculate Turnover Rate Percentage
Understanding your employee turnover rate is one of the most critical metrics for any HR department or business owner. It measures the rate at which employees leave your organization during a specific period—be it monthly, quarterly, or annually.
The Employee Turnover Formula
The calculation is a simple three-step process. To find the percentage, you need to know how many people you started with, how many you ended with, and how many left in between.
High turnover is expensive. When an employee leaves, you lose productivity, institutional knowledge, and incur high costs for recruiting and training a replacement. Industry benchmarks vary significantly; for example, the hospitality industry typically sees much higher turnover than the government sector.
What is a "Good" Turnover Rate?
While a 0% turnover rate might sound ideal, it's rarely achievable or even healthy (as it can indicate stagnation). Most experts suggest that a 10% annual turnover rate is a healthy target for many industries, though you should always compare your results against competitors in your specific field.
Tips to Reduce High Turnover
If your calculation shows a percentage higher than your industry average, consider these strategies:
Improve Onboarding: Ensure new hires feel welcome and prepared from day one.
Competitive Compensation: Regularly audit your salary and benefits packages.
Career Development: Provide clear paths for promotion and skill growth.
Stay Interviews: Talk to current employees about why they stay and what could be improved before they decide to leave.