In our country, VAT is always included in the price of goods. In the USA, the equivalent of VAT is Sales Tax, but if in your country it is the same throughout the territory, then in the USA it may vary from state to state depending on the economic situation in the region, and sometimes it is completely absent. On average, it is 8-10%. Therefore, in online stores you always see prices without taking into account Sales Tax, and only when you specify your delivery address, this tax is automatically added to the cost of the goods.