Why Is My Food Cost So High? Check Units, Portions and Invoices
By Marji · Published · Updated · 4 min read
First identify whether the high number is one recipe’s food-cost percentage or the restaurant’s inventory-adjusted period food cost. Then check matching dates, selling prices, purchase units, current invoices and portion yields. Compare actual consumption with reviewed recipes only after those inputs are complete. A high percentage is a symptom; it does not identify waste, theft or any other cause by itself.
Choose the correct branch of the calculation
| Your figure | First evidence needed | Next check |
|---|---|---|
| One dish’s cost percentage | Current recipe, ingredient costs and selling price | Check pack units, usable yield and every ingredient line |
| Whole-period food cost | Opening inventory, net purchases, closing inventory and matching food sales | Align dates and scope before comparing |
| Ideal-versus-actual variance | Complete reviewed recipe costs and period dish counts, plus actual food consumption | Reconcile the two methods before assigning a cause |
| AI estimate or partial recipe | Missing quantities, yields or invoice evidence | Complete the recipe; do not interpret an apparent margin as verified |
A menu photo can identify dishes and selling prices, but it cannot determine a kitchen’s actual recipe cost. If the number comes from an estimate, collect the actual supplier pack and weigh the relevant portion first. If it comes from a period report, look for different food and beverage scopes or invoices near the inventory cutoff. These are different diagnostic jobs even when both screens show a percentage.
Check units and supplier evidence
A case, inner pack and individual unit are not interchangeable. Compare price per compatible purchased unit, then check whether the recipe uses raw input or usable output. A change from four 5 lb bags to six 4 lb bags changes the denominator from 20 to 24 lb. A higher case price may therefore coexist with a lower cost per pound.
Match SKU, specification, invoice date and delivered quantity before replacing the old ingredient cost. Keep unreadable weights, substitutions and unconfirmed credits unresolved. The invoice price audit provides a line checklist; the supplier comparator helps with unequal packs. A zero inserted to make the spreadsheet calculate is not a reviewed free ingredient.
Separate ingredient inflation from the price decision
| Input or result | Before | After cost change |
|---|---|---|
| Plate ingredient cost | $5.00 | $6.00 |
| Selling price | $16.00 | $16.00 |
| Ingredient food cost | 31.25% | 37.50% |
| Ingredient contribution | $11.00 | $10.00 |
The percentage rises by 6.25 percentage points, while ingredient cost rises 20%. Both descriptions are correct but answer different questions. At an assumed 100 dishes per week, ingredient contribution is $100 lower before other expenses. This example does not establish a normal rate of supplier inflation or prove a menu price should rise.
Dish food cost percentage
Reviewed ingredient cost ÷ selling price × 100
Use the actual price basis appropriate to the question. A menu list price and realized revenue after discounts may differ.
Weigh portions at the same preparation stage
A cooked serving cost requires the yield to cooked weight. A raw recipe input already includes the purchased quantity and should not receive that same loss adjustment twice. The yield calculator can check a measured test, and the recipe calculator can compare a standard portion with a served-quantity scenario.
For example, a reviewed usable cost of $4/lb is $0.25 per ounce. A measured 5.5 oz portion against a 5 oz standard adds $0.125 per plate. At an assumed 200 plates, that is $25. Label the portion record with date and preparation state, and involve the team in checking whether the standard reflects the product you intend to serve. The calculation shows an effect, not why the portion differed. For scooped and ladled items, the portion tool chart converts disher numbers and ladle sizes into cups and cost per portion.
Reconcile period consumption with the kitchen records
- Align opening and closing stock counts with purchases and sales. Retain adjustments for returns, transfers and credits consistently.
- Review waste, remakes, comps and staff meals by item and reason. They consume ingredients without necessarily creating an ordinary paid dish count; the food waste guide sets up a two-week log for the discards among them — spoilage, overproduction, errors and returned plates — and the voids and comps guide covers comps, voids and staff meals on the POS side.
- Check receiving quantities against deliveries. Keep unresolved shortages separate from the price quoted for a complete case.
- Inspect menu mix and realized selling prices. Selling more of a higher-cost dish can change the overall percentage even if every recipe stayed constant.
- Investigate remaining unexplained differences from evidence. Do not accuse people based on a percentage or present a ranked list of causes as a measured frequency study.
The ideal-versus-actual guide works through both dollar totals. Marji does not maintain inventory counts or ingest POS sales; obtain those observations from your own records. Missing inventory makes an actual-period result unknown, even if recipe calculations are complete.
Turn the finding into a bounded next action
If a unit is wrong, correct it and inspect the affected recipes. If a cost is stale, update it from reviewed invoice evidence. If a portion standard is under review, keep that decision separate from the current recipe. If contribution has fallen, use the menu price scenarios and assess customer value and other expenses before approving a change.
Retain the original observation, the corrected inputs and the remaining unknowns. Choose a repeat observation period that matches your operation. A smaller gap after a change is useful evidence, but before-and-after movement can also reflect sales mix, purchasing timing and other changes. Do not report projected recovery as achieved savings.
Start with one complete dish
Check purchase units, current costs and the served portion before treating the margin as known.
Review a recipe calculationTerms this guide uses
Variance
The dollar gap between theoretical and actual food cost — the money that left without a sale.
Portion control
Keeping served portions equal to specced portions — the difference between the food cost you calculated and the one you get.
Waste percentage
The share of purchased food that is thrown away rather than sold — spoilage, overproduction, errors and returns.
Comps
Food or drink given away — recovery, staff meals, promotions — real cost with no matching revenue.
Price creep
Small, frequent supplier price increases that individually look ignorable and collectively remove several points of margin a year.
Invoice reconciliation
Checking that what you ordered, what arrived, and what you were billed are the same three things.
Spoilage
Product lost to age, temperature or damage before it could be sold.
Read next
Restaurant Invoice Price Audit: Check the Line Before Updating Recipe Costs
Check supplier invoice prices, smaller packs, catch weights and credits before updating recipe costs. Worked examples show what changes and what stays unresolved.
Ideal vs. Actual Food Cost: Which Inputs Explain the Gap?
Compare reviewed recipe costs and manually supplied dish counts with inventory-adjusted period food cost, then check invoice, unit, portion and timing evidence.
Recipe Costing, Step by Step: Purchase Unit to Served Portion
Cost a recipe from supplier pack to served portion, with source dates, measured yields, a worked plate and explicit handling of missing ingredient costs.