Food Cost Percent: Purchases Are Not the Same as Consumption

Food cost percent answers how much of the matching sales was consumed by food. It does not tell you how much profit the restaurant made.

Use inventory to find food consumed

Start with beginning inventory + purchases − ending inventory. If you begin with $2,000, buy $3,000 and finish with $1,500, you used $3,500. On $10,000 net food sales, cost is 3,500÷10,000×100 =35%.

Dividing purchases alone by sales would produce 30%. That misses the $500 reduction in inventory. Use the same dates, valuation basis and units for the counts, purchases and sales. Reconcile transfers, credits, staff meals, waste and count errors before interpreting the result.

Keep the denominator comparable

If your numerator contains food only, compare corresponding net food sales. If you include food and beverage consumption, use matching sales. Including sales tax or employee tips makes the percentage look artificially smaller. A platform bank payout net of commissions is not the same as the full food sale.

Recipe cost answers a different question

A recipe costing $3 per portion at a $15 menu price has 20% theoretical food cost. This assumes its specified portion, yield and ingredients. It does not measure actual waste, giveaways, overportioning or an incorrect recipe.

Use the recipe calculator to check purchased quantity, usable yield and portion. A 20 lb case costing $60 with 75% usable yield gives 15 lb usable at $4/lb. Six usable ounces cost $1.50. Do not apply that same yield loss twice.

Explain a gap in dollars

Suppose actual food cost is 35% and the comparable expected mix suggests 30% on $20,000 sales. The difference is 5 percentage points, or $1,000. It is not proof of theft, and it is not a 5% relative increase:35% is 16.67% higher than 30%.

Check high-spend ingredients first: counted quantities and units, invoice prices, recipe portions, yield, sales mix and recorded waste. Serving 8 oz instead of 6 oz of a $4/lb ingredient adds $0.50 per dish. On 1,000 dishes, that is $500—half the example gap.

Turn the finding into an operating change

Weigh portions, provide the correct portioning tool, correct invoice/UOM errors, revise a par that causes spoilage, or reprice a dish using its complete cost and customer value. Do not cut quality blindly because the percentage is high.

Use the weekly scorecard and the inventory and waste worksheets. Review the next comparable period to see whether the change reduced dollars of waste or improved contribution. A lower percentage caused by a price increase is different from using less food.