The basic profit formula
Put simply, transaction profit is sales revenue minus the cost of goods sold and transaction-related costs. Make sure every component comes from the same period or transaction.
A simple example
If an item sells for Rp100,000, the cost of the goods sold is Rp65,000, and there are related costs of Rp5,000, the transaction profit is Rp30,000. This example is deliberately simple so each component is easy to see.
Distinguish revenue from profit
Revenue shows the value of sales, not money that automatically becomes profit. Cost of goods and expenses still need to be accounted for before judging a transaction's result.
Changes in purchase price
If a product is purchased in several batches at different prices, the cost of goods sold should follow the inventory recording method in use. That's why purchase history helps produce cost figures that are easier to trace.
Record relevant costs
Additional costs that genuinely relate to a transaction are best recorded separately from the selling price. This helps you see why two transactions with the same revenue can produce different profits.
Explore related features
sales and profit recording FIFO for inventory
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