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Cost of Goods Sold (COGS) & Gross Profit Calculator

Calculate cost of goods sold from beginning inventory, purchases and ending inventory, then connect it to gross profit.

Private by design. Inputs and calculations stay in this browser tab. No financial or property values are uploaded.

Scenario inputs

COGS Calculator

COGS equals beginning inventory plus purchases/production costs minus ending inventory.

Calculated view
COGS$79,000.00
Gross profit$61,000.00
Gross margin43.57%
Inventory available for sale$101,000.00
Sensitivity analysis

Scenario lab

Changes only Purchases / production costs while holding the other assumptions constant.

80% input60,800
Primary result: 63,800
90% input68,400
Primary result: 71,400
100% input76,000
Primary result: 79,000
110% input83,600
Primary result: 86,600
120% input91,200
Primary result: 94,200

This calculator is an educational planning tool. Verify financing, tax, legal, investment and accounting decisions using the authoritative documents and professionals that apply to your situation.

Why this tool is different

Calculate cost of goods sold from beginning inventory, purchases and ending inventory, then connect it to gross profit. OpenFileTools exposes the inputs, formulas and scenario effects so the estimate remains auditable.

Requirements and recommendations

Model the decision with explicit assumptions

  • Enter realistic assumptions instead of best-case values.
  • Use the scenario lab to see which assumption changes the result most.
  • Verify taxes, rates, fees, legal rules and market inputs from authoritative sources before making a real decision.
How OpenFileTools processes it

Local processing, explicit choices.

The browser evaluates the published calculation from your inputs and recomputes a bounded sensitivity range around the selected scenario variable. No external market feed or hidden scoring service is called.

Frequently asked

Questions, answered.

Is my data uploaded?

No. Batch 3 workbooks, trackers and calculators run locally in this browser tab and generate downloads on your device.

Are the results official advice?

No. These tools are planning and analysis aids. Verify important academic, financial, tax, legal, lending, employment or investment decisions with the relevant authoritative source or professional.

Related guide

Learn more about this task.

Read the related guide