Worked example: one week, one cost scope
The figures below demonstrate the method. They are not a benchmark or recommendation for every restaurant.
| Item | Calculation | Result |
|---|---|---|
| Gross wages | Weekly payroll input | €6,400 |
| Employer costs | €6,400 × 20% assumption | €1,280 |
| Total labor cost | €6,400 + €1,280 | €7,680 |
| Revenue | Revenue for the same week | €32,000 |
| Labor cost percentage | €7,680 ÷ €32,000 × 100 | 24.0% |
In this example, the labor cost percentage is 24.0%. The useful next step is to compare it with the restaurant's own consistent plan and prior like-for-like periods.
Interpret the result before changing the schedule
Separate cost from revenue movement
A higher percentage can come from higher labor cost, lower revenue, or both. Check the numerator and denominator separately.
Compare equivalent periods
Compare similar service patterns and the same cost scope. A special event, closure, holiday, or partial week can distort a simple comparison.
Use an internal target carefully
If the business has a planning target, record the source and assumptions. One percentage is not automatically right for every restaurant or service model.
Trace the operational cause
Review planned versus worked hours, role coverage, wage mix, overtime, and revenue timing before deciding that staffing is the cause.
Common calculation mistakes
- Mixing labor cost and revenue from different dates.
- Changing the included employer costs between comparisons without noting it.
- Treating gross wages alone as loaded labor cost when the chosen method is meant to include employer costs.
- Using a percentage change as proof of overstaffing without checking revenue and operating context.
- Presenting a general benchmark as a rule for every restaurant.
Limits and assumptions
This is an operational planning method, not payroll, accounting, tax, or legal advice. The example uses an editable employer-cost assumption only to show the arithmetic. Use figures and definitions from the same accounting basis, and ask qualified advisers which costs and revenue measures apply to your business.
Calculate the percentage or connect it to the schedule
Use the free calculator for a transparent one-period result, or see how ShiftPriority connects scheduled labor and revenue for ongoing restaurant labor-cost control.