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Restaurant Leakage Calculator

Enter five figures you already have. This shows what your kitchen actually consumed, what your sales say it should have consumed, and the gap between the two — with every step of the arithmetic visible.

How this is calculated

No hidden model — three lines of arithmetic you can check by hand:

Actual consumptionopening stock + purchases − closing stock
Actual food cost %actual consumption ÷ food sales × 100
Expected costfood sales × your target food cost %
Unexplained gapactual consumption − expected cost − recorded wastage

The annual figure is simply the same gap repeated twelve times if nothing changes. It is an illustration of scale, not a forecast and not a promise of savings.

What the gap does and does not mean

The gap is the portion of your consumption that sales, recipes and recorded wastage do not account for. Several very different things land in the same number:

It tells you how much to investigate. It does not tell you which of these it was — and any tool that claims otherwise is guessing. A high gap on its first run most often turns out to be records rather than crime: an item recorded under two spellings, a rate typed wrong, or a purchase everyone remembers that nobody wrote down.

Getting a reliable answer

Track this every day instead of every quarter

RestroMatrix runs this arithmetic continuously — purchases, stock counts, wastage and cash recorded by your team as they work, with the gap attributed to a day and a shift. It works alongside your existing POS.

See how it works Read the leakage guide