Costing & profitability
Restaurant Prime Cost: What Owners Should Monitor Every Week
Prime cost combines the restaurant's cost of goods sold and labor. It is one of the clearest views of whether the operation is converting sales into a sustainable margin—but the percentage alone does not explain what to fix.
Start with reliable definitions
Food, beverage and labor numbers must be categorized consistently before the result is useful. Transfers, employee meals, comps, contract labor, payroll taxes and benefits should be treated the same way from period to period. A changing definition can create the illusion of improvement or decline. Owners should agree with management on the exact components and review them against the same sales period.
Read cost of goods through operating behavior
A rising food-cost percentage may come from vendor inflation, weak pricing, portion variance, waste, overproduction, theft, incorrect yields or a shift in menu mix. The review should connect purchases and inventory movement to recipes, covers and sales. Managers need a short list of controllable actions rather than a general instruction to reduce food cost.
Read labor through demand and deployment
Labor percentage is affected by wage rates, but scheduling and deployment determine how much productive work those wages buy. Compare scheduled and actual hours to covers, sales and the work required by each daypart. Look for early clock-ins, late cuts, duplicated management coverage, prep patterns, overtime and positions that remain staffed after demand changes.
Turn the weekly review into commitments
The review should end with named actions, owners and dates: adjust a recipe yield, renegotiate a specification, correct a schedule, retrain a station or change a price. The next meeting should begin by confirming whether those actions occurred. Prime cost improves when the number is connected to management behavior and verified consistently.
ONNIT takeaway
Monitor prime cost weekly, but manage the recipes, purchasing, scheduling, productivity and accountability that create it every day.