How to Compare Profit Margins Across Multiple Marketplaces

Selling game keys on platforms like G2A, Eneba, or Kinguin looks simple. However, calculating your true profitability is a different story.

A few years ago, you could manage everything in Excel. Today, that way of working leads to mistakes and losses. Every marketplace has different commission structures, payout fees, and hidden costs. Analyzing which sales channel is the most profitable requires hours of work, and a single formula error can ruin your financial projections.

The Hidden Costs of Marketplace Selling

The key market seems simple: you buy, you sell, you make a profit. Scaling your business across multiple platforms, however, changes this reality.

With thousands of transactions, simple revenue data misleads you – high gross sales do not mean high profit. To calculate your real net profit, you must account for:

  • Platform commissions: Each marketplace takes a different percentage per transaction.
  • Payout and currency conversion fees: Moving funds generates costs.
  • Refunds and chargebacks: Disputes directly reduce margins in a given channel.
  • Dynamic purchase costs: The cost of acquiring keys constantly fluctuates.

Managing these variables manually becomes impossible. Prices that look profitable in the morning can generate losses by the afternoon.

The Solution: Centralized Financial Dashboards

Professional sellers do not rely on guesswork. To protect profitability, they use automation that:

  • Pulls sales data from all APIs in real time.
  • Automatically subtracts purchase costs and platform commissions.
  • Displays a single, clear view of actual net profit per marketplace.

Instead of wasting hours on manual calculations and guessing which channel brings profit, you gain full control over your margins in one place.

Keep Reading

These guides will help you build a complete automation stack: