IsonkeFree depot variance calculator

For South African wholesale fuel depots

Calculate your depot’s unexplained stock variance in rand.

First price your accepted threshold. Then reconcile one product and one closed month to calculate what the records cannot explain.

Depot variance calculatorFree
Accepted variance
  • No contact details required
  • Uses only your figures
  • Threshold value in 30 seconds

Designed from inside wholesale fuel logistics.

Ntandoyenkosi Mpofu, Isonke co-founder
Ntandoyenkosi MpofuCo-founder

Before co-founding Isonke, Ntandoyenkosi spent three years as a Logistics Coordinator at a Johannesburg wholesale diesel supplier.

Her work included reconciling orders, bills of lading, receiving meters, probe readings, tank logs and delivery records; investigating material differences; and preparing evidence for supplier shortage claims.

That work taught her that you can calculate a variance before you can prove its cause.

Before you call it a loss.

  1. Use the depot’s own figures.The calculation uses your throughput, landed cost and accepted variance. It does not assume a loss rate or rely on an industry benchmark.
  2. Keep the numbers separate.Threshold exposure, unexplained stock and a potential supplier claim are three different numbers.
  3. Let the records decide.The calculator measures the value inside your accepted variance. Your invoices, bills of lading, meter readings, tank logs and delivery records establish what happened.

Your variance has a price.See it in 30 seconds.

Enter your monthly litres, landed cost and accepted variance. The calculator shows the annual rand value that can pass before an investigation begins.

Show me the rand valueFree. No contact details required.