How to use this calculator
- Enter beginning inventory, net purchases and direct acquisition costs, ending inventory.
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Assumptions and limitations
Enter net purchases consistently and exclude selling/administrative expenses. Ending inventory cannot exceed available goods.
Worked example
With beginning inventory = 20000, net purchases and direct acquisition costs = 80000, ending inventory = 25000, cost of goods sold is approximately 75000.
What the result means
This periodic-inventory reconciliation uses costs rather than retail selling prices.
Common questions
How should I interpret cost of goods sold?
This periodic-inventory reconciliation uses costs rather than retail selling prices.
What should I check before using this result?
Enter net purchases consistently and exclude selling/administrative expenses. Ending inventory cannot exceed available goods.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.