Perko
Platform

Inventory & Margin

Know what you have. Know what it costs.

From supplier receipt to plate cost, Perko connects stock, recipes, sales, valuation, and review.

Discuss your workflow
Inventory · Current record Venue overview
Capture Supplier document
Receive Reviewed stock
Use Versioned recipe
Review Cost and margin
Salmon bowl · available to sell 18 portions
Salmon75% Rice90% Packaging78%
Every movement keeps its source and reason.
Example inventory and margin record

The leakage problem

The invoice, recipe, and count can each look right — while the difference remains unexplained. Purchases, consumption, and waste drift apart across separate records.

The operating loop

Inventory operating loop

One source record follows the work. Each step keeps its context.

  1. 01 Purchase Capture the supplier receipt
  2. 02 Receive Verify what arrived
  3. 03 Recipe Exact plate cost from reviewed recipes
  4. 04 Movements Every stock move traced
  5. 05 Counts Blind counts, no adjusting
  6. 06 Margin Review the real margin

No re-entry between steps. Corrections keep the original evidence.

Purchase capture

Receipt ingestion
Upload or forward the supplier document. Perko extracts the supplier, date, items, quantities, and unit costs.
Verification
A human checks the extracted data against the original. One‑click approve or correct.
Immutable record
Approved receipts become append‑only stock‑in records. No editing without a documented correction.

Receiving

Match what arrived
Mark each line as received, partially received, or rejected. Partial deliveries create an open remainder, not a silent gap.
Quality notes
Record condition, expiry, batch, or rejection reasons directly on the receipt.

Recipes and plate costing

Reviewed recipes
Every sellable item has a versioned recipe with exact bill of materials. A recipe is not a suggestion — it drives costing, stock consumption, and availability.
Real‑time cost
The plate cost recalculates when a supplier price changes. No end‑of‑month surprise.
Yield and prep loss
Trim, evaporation, and batch yield factor into the cost model. What you sell is what you cost.

Stock movements

Append‑only ledger
Every purchase, consumption, transfer, count adjustment, and waste record is an immutable movement. Nothing is overwritten.
Available‑to‑sell
Sales consume stock per the reviewed recipe. The available quantity reflects confirmed receipts minus confirmed consumption and waste.
Low‑stock and expiry alerts
Configurable thresholds alert before you run out or before an item expires on the shelf.

Blind counts and margin review

Blind counts
A count sheet shows only the item name and location — no expected quantity. Count what is there, not what you hope is there.
Variance before adjustment
Every discrepancy is visible before any adjustment is applied. The owner sees the gap and decides.
Margin at every level
Margin by recipe, by category, by supplier, and by period. Stock moves, sales, and costs tie to the same ledger.

A clear boundary

Scope

Included

Purchase capture, receiving, reviewed recipes, automatic consumption, blind counts, and margin review at one test venue with a single supplier.

Not claimed in this scope

Multi‑supplier purchase‑order automation, warehouse‑to‑venue transfers, advanced manufacturing batch tracking, and full FIFO/lot traceability.

Bring your venue onto Perko.

Tell us about your business and we will get back to you.

Join Perko