Theoretical vs actual usage

Compare what your sales say you used with what you actually used. The Theoretical page shows each ingredient's deliveries, waste, transfers and recipe use.

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Last updated · Mays Team

Compare what your sales say you should have used with what you actually used. The Theoretical page shows each ingredient's deliveries, waste, transfers and recipe use.

  • Theoretical usage is what your recipes say your sales used. It comes from POS mapping. See POS mapping and automatic depletion.
  • Actual usage is what left your shelves: start inventory + deliveries − transfers − end inventory.
  • Variance is actual − theoretical. Above zero means you used more than the recipes predict: waste, over-portioning, spills or theft.

Before you rely on it: counts can't be approved yet

The start and end inventory come from approved counts, and counts can't be approved from the web or the apps yet. Until they can:

  • Start Inv and End Inv show 0 for every item (Not yet counted);
  • Actual Usage only adds up deliveries and transfers, and Variance shows minus the recipe use, so neither means anything yet;
  • Inventory → Reports → Actual vs theoretical shows Need two approved counts to measure usage variance.
The Inventory Reports page on the Actual vs theoretical tab, showing Need two approved counts to measure usage variance

Deliveries, Waste, Transfers and Recipe Consumption are right today. For actual usage, use your own counts: take the opening count from one submitted count, add the deliveries shown here, and subtract the closing count. See Running stock counts.

Open the Theoretical page

  1. Go to Inventory → Theoretical (under Analysis).
  2. Pick the dates. The page starts on the last 30 days.
  3. Choose Week or Day for the breakdown, and narrow it with Search ingredients or a category.
  4. Click Variance in the header to sort by it.
  5. Click an ingredient to open its details.
The Theoretical Usage page for September 17 to 24, by week: each ingredient with Start Inv, Deliveries, Transfers, Waste, Recipe Consumption, End Inv, Actual Usage and Variance. Oat milk is open: 24 cartons delivered for $93.60, 1 wasted, 28.88 used by recipes for $112.63, all by the Oat milk latte 16 oz recipe; start and end inventory show 0

The columns

Column

What it is

Start Inv

The item's last approved count on or before the start date

Deliveries

What posted invoices added, in count units

Transfers

What was sent to another location. Stock received from another location shows as a minus number. See Transfers between locations

Waste

What was logged as waste, on the web or with a waste form

Recipe Consumption

What sales used, from mapped recipes

End Inv

The last approved count on or before the end date

Actual Usage

Start Inv + Deliveries − Transfers − End Inv

Variance

Actual Usage − Recipe Consumption. Red when more than 10% over; green when under

Each number has its cost under it. Waste isn't taken out of actual usage, so it's part of the variance.

In an ingredient's details:

  • Recipe consumption breakdown lists which recipes used it, with amounts and costs.
  • Per-period detail has a row per week or day, but its numbers show — for now.

A unit mismatch tag means deliveries came in a pack Mays couldn't match to the item's units, so they may not compare directly. Check the item's units. See Inventory items.

Inventory reports

Inventory → Reports has three tabs:

  • COGS: theoretical cost of goods from recipe use, your net sales, and COGS %, for the dates you pick. To see it next to labor, day by day, use Prime cost.
  • Actual vs theoretical: needs two approved counts (see above).
  • On-hand value: what your stock on hand is worth, item by item, and roughly how many days it will last at the last 30 days' usage.

Good to know

  • Only mapped sales count. A menu item that isn't mapped to a recipe adds nothing to theoretical usage.
  • Sales made before a count still count as usage here, but they aren't taken out of stock again after the count. See POS mapping and automatic depletion.
  • Dates follow the location's time zone, so late-evening sales, waste, deliveries and counts land on the day they happened.
  • Weeks run Monday to Sunday. A week can start before or end after the dates you picked.
  • The page shows up to 500 ingredients.

Still need help?

Send us a support request and a real person on the Mays team will get back to you.