The profit margin of an online store refers to the ratio between the net profit and sales revenue obtained by the online store, and is an important indicator reflecting the profitability of the online store. The calculation formula is as follows:

Online store profit margin = (net profit/sales revenue) × 100%

Among them, net profit refers to the balance after deducting the total cost from the total revenue of the online store in a certain period, and sales revenue refers to the total revenue of the goods or services sold by the online store in a certain period.

It should be noted that the calculation of the profit margin of an online store will be affected by many factors, such as commodity cost, sales price, sales volume, operating expenses, etc., so it is necessary to comprehensively consider these factors to evaluate the profitability of the online store. At the same time, the profit margin of an online store should also be compared with other online stores in the same industry to understand its competitive position in the market.