Understand profit from purchase cost

Reviewed 17 October 2026

Know the difference between total sales and product profit.

Record the whole delivery

Record quantities, supplier discounts and free goods accurately. They all contribute to the real cost. A new delivery also affects the average cost of the remaining stock.

A worked example

If the purchase cost is ৳68 and the sale is ৳75, product profit is ৳7 before other adjustments. This is different from net profit after all shop operating expenses.

You decide when to change prices

When cost changes, compare your price against your target margin. Review suggestions and decide for yourself. No calculation can guarantee higher profit.

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