Sales tax is a percentage of a retail price. To calculate it, convert the state sales tax percentage to a decimal, then multiply it by the retail price of the product or service.

The sales tax you pay depends on the state where you made your purchase. Use our free sales tax calculator below to estimate your sales tax.

Master how to calculate sales tax and find out how much you'll really pay. Includes tips, examples and local tax rate info.

Microsoft Excel tracks sales revenue and calculates the total, freeing you up to concentrate on other aspects of your business.

How to Calculate the Percent of Total Sales in Excel. Monitoring sales revenue allows you to track your business' profit, but equally important is understanding where those revenues are derived ...