How to Calculate the Real Cost of After-Hours Worker Calls
A transparent method for staffing agencies to calculate coordinator time, manager interruptions and avoidable operational costs after office hours.
Start with workload, not an AI savings percentage
A useful business case begins with the work the agency already performs. Count calls and messages received outside office hours, then separate routine questions, absence reports and urgent exceptions. Do not begin with a blanket assumption that automation saves a fixed percentage.
Use a representative four-week period. For every case, estimate the time spent receiving the report, checking worker and shift data, contacting the responsible person, documenting the outcome and completing follow-up.
Calculate the direct monthly handling cost
The basic formula is: monthly cases multiplied by average handling minutes, divided by 60, multiplied by the fully loaded hourly cost. If 240 cases take 12 minutes each and coordinator time costs EUR 30 per hour, direct handling equals EUR 1,440 per month.
Add manager time separately. If 15 percent of cases interrupt a manager for an average of eight minutes, calculate that workload using the manager's own hourly cost. Keeping the two components separate makes the estimate easier to challenge and improve.
Keep disruption and no-shows visible but separate
A missed or incomplete report may cause replacement delays, client complaints or an uncovered shift. Those effects matter, but they are not the same as payroll cost. Present them as a separate operational exposure and document every assumption.
For no-shows, model scenarios rather than promises. Show the result if earlier response prevents 5, 10 or 20 percent of addressable cases. Decision-makers can then see which assumption changes the outcome.
Compare the current process with the future process
The correct comparison is current operating cost versus the remaining operating cost after implementation plus the subscription. Savings equal the cost removed from the existing process; net value equals those savings minus the new monthly fee.
Also report hours released, response coverage and documentation quality. A system may be commercially valuable even when direct labour savings alone do not cover the full fee, but the calculator should say that clearly instead of hiding the difference.