A calculator that allows you to quickly calculate price reductions and tips with just a few clicks. As a buyer, this tool can be used to see the final price of an item after a discount has been applied, such as a 20% off coupon. The calculator can also be used to calculate tip amounts for common service costs, providing a total that includes the tip. This allows you to easily compare prices and savings, and make informed decisions when making purchases or leaving a tip for service.