function calculateAbsenteeism() {
var totalScheduled = parseFloat(document.getElementById('totalScheduled').value);
var totalAbsent = parseFloat(document.getElementById('totalAbsent').value);
var avgDailyWage = parseFloat(document.getElementById('avgDailyWage').value);
var errorDiv = document.getElementById('errorMessage');
var resultDiv = document.getElementById('resultBox');
// Reset display
errorDiv.style.display = 'none';
resultDiv.style.display = 'none';
// Validation
if (isNaN(totalScheduled) || totalScheduled <= 0) {
errorDiv.innerHTML = "Please enter a valid number of scheduled employees (must be greater than 0).";
errorDiv.style.display = 'block';
return;
}
if (isNaN(totalAbsent) || totalAbsent totalScheduled) {
errorDiv.innerHTML = "Absent employees cannot exceed total scheduled employees.";
errorDiv.style.display = 'block';
return;
}
// Calculation
var rate = (totalAbsent / totalScheduled) * 100;
// Cost Calculation (Optional)
var cost = 0;
if (!isNaN(avgDailyWage) && avgDailyWage > 0) {
cost = totalAbsent * avgDailyWage;
}
// Status Logic
var status = "";
var color = "";
if (rate <= 1.5) {
status = "Excellent (Low Impact)";
color = "green";
} else if (rate <= 3.0) {
status = "Average (Manageable)";
color = "orange";
} else {
status = "High (Critical Impact)";
color = "red";
}
// Output formatting
document.getElementById('rateResult').innerHTML = rate.toFixed(2) + "%";
document.getElementById('rateResult').style.color = color;
var statusElement = document.getElementById('productivityStatus');
statusElement.innerHTML = status;
statusElement.style.color = color;
statusElement.style.fontWeight = "bold";
document.getElementById('costResult').innerHTML = "$" + cost.toLocaleString('en-US', {minimumFractionDigits: 2, maximumFractionDigits: 2});
resultDiv.style.display = 'block';
}
How to Calculate Absenteeism Rate Per Day
Monitoring daily attendance is a critical Human Resources metric that directly correlates with productivity and operational efficiency. The Daily Absenteeism Rate measures the percentage of your workforce that is not present during a scheduled workday due to unplanned absences, sick leave, or other reasons. While monthly or annual rates are common, calculating absenteeism on a daily basis allows managers to address immediate staffing shortages and identify trends in real-time.
The Formula for Daily Absenteeism
The calculation for the daily absenteeism rate is straightforward. It compares the number of absent employees to the total number of employees who were expected to work that day.
Imagine a manufacturing plant where 50 employees are scheduled to work a shift. On Tuesday morning, 3 employees call in sick or do not show up.
Step 1: Divide the number of absences (3) by the total scheduled headcount (50). 3 ÷ 50 = 0.06
Step 2: Multiply the result by 100 to get the percentage. 0.06 × 100 = 6%
In this scenario, the daily absenteeism rate is 6%.
Why Calculate Absenteeism Daily?
Tracking this metric daily offers several advantages over monthly reporting:
Spot Patterns: Daily tracking helps identify specific days (like Mondays or Fridays) that have consistently higher absence rates.
Immediate Cost Control: By inputting the average daily wage into the calculator above, you can see the direct financial loss incurred that day.
Resource Allocation: High daily rates trigger the need for contingent workers or overtime for remaining staff to maintain production levels.
Interpreting the Results
What constitutes a "good" or "bad" rate varies by industry, but general benchmarks suggest:
Under 1.5%: Excellent attendance. The workforce is highly engaged and healthy.
1.5% – 3%: Average. This is typical for most organizations accounting for standard sick leave and emergencies.
Over 3%: High. This may indicate issues with workplace culture, burnout, or illness outbreaks requiring management intervention.
Calculating the Cost of Absenteeism
The financial impact of absenteeism extends beyond just the salary paid to absent employees (if they have paid time off). It also includes:
Overtime pay for replacement workers.
Administrative costs of managing schedules.
Lost productivity or reduced quality of service.
Using the calculator above, you can estimate the direct salary cost by multiplying the number of absent staff by their average daily wage. For a more comprehensive cost analysis, experts recommend adding a 20-50% buffer to this number to account for indirect costs.