Calculate sales tax and total price for any purchase
Sales tax is a percentage added to the purchase price of goods and services. The rate varies by state and locality in the United States, ranging from 0% (Oregon, Montana, Delaware, New Hampshire) to over 10% in some cities when state and local taxes combine.
Tax Amount = Price × Tax Rate ÷ 100. Total Price = Price + Tax Amount. For example, a $49.99 item at 7% tax: $49.99 × 0.07 = $3.50 tax. Total = $53.49.