Understanding Food Cost Variance Reports
A food cost variance report shows the gap between what you should have used and what you did. Here's how to read one and turn the variance into recovered margin.
A food cost variance report compares theoretical usage — what your recipes say you should have used for what you sold — against actual usage from inventory counts. The difference, item by item, is your variance. Reading it well tells you exactly where margin is leaking: which proteins are over-portioned, which items are being wasted, and where product may be walking out the door.
What the report shows
For each item or category, a variance report lines up three numbers:
| Item | Theoretical used | Actual used | Variance |
|---|---|---|---|
| Chicken breast | 180 lb | 205 lb | +25 lb |
| Marinara | 40 qt | 42 qt | +2 qt |
| House wine | 60 btl | 71 btl | +11 btl |
Theoretical is built from recipe costs times units sold. Actual comes from your inventory counts. A positive variance means you used more than you sold — the leak.
How to read it
- Sort by dollar variance, not percentage. A 5% variance on your top protein costs more than 30% on garnish. Chase dollars.
- Look for patterns. Consistent over-usage on proteins points to over-portioning. Spikes on perishables point to spoilage. Bar variance points to over-pouring or theft.
- Separate the causes. Waste (in your log), portioning (weigh against spec), receiving errors, and theft each leave a different fingerprint.
- Set a threshold. A variance under 1-2 points overall is normal. Above that, investigate the biggest contributors.
Turn variance into recovered margin
The report is a map, not a fix. For each top offender, assign a cause and an action: retrain portioning, tighten a par, verify receiving, or lock down access. Then re-run the report next period to confirm the point came back. This is the engine of a food cost audit.
A variance report doesn't lower food cost by itself — it tells you exactly where to aim. The money is in acting on the top three lines and re-checking.
Generate it automatically
Building a variance report by hand — matching every item sold to its recipe, then to a count — is why most owners never see one. Cobblestone POS knows what you sold and what you counted, so it produces item-level variance automatically and highlights the biggest leaks; Daisy, its AI assistant, can explain the likely causes. It's a free, all-in-one platform for independents, and a reason owners leave pricier systems like Toast ($470+/month), which charged extra for this reporting. It pairs directly with your theoretical vs. actual analysis.
Frequently asked questions
What's a normal variance? Under 1-2 points overall. Individual items vary, but a large blended gap means real money is leaking through waste, portioning, or theft.
Percentage or dollars — which do I chase? Dollars. A small percentage on a high-cost, high-volume item outweighs a big percentage on something cheap. Fix the biggest dollar leaks first.
How often should I run it? Every period you count — weekly is ideal. The trend catches problems while they're small.
The bottom line
A variance report is the closest thing you have to a map of where your margin is leaking. Read it by dollars, act on the top three lines, and re-run it next period to confirm the point came back. The restaurants that hold a tight food cost aren't guessing — they're reading this report every week and quietly fixing whatever it points to before it grows.
Common questions
What variance is acceptable? Within one percentage point of theoretical is tight. Two to three points is normal for a kitchen that has just started tracking; anything above three signals waste, theft, or a recipe that is not being followed.
How often should I review the report? Weekly, the morning after inventory. A monthly review hides the week the problem started and makes the cause almost impossible to find.
Build one with the free Variance Report Template (Excel).
