Try this app for free at AppSurfer: http://publisher.appsurfer.com/apps/16769-shop-easy
Let Shop Easy do the math for you. Shop Easy is a percentage calculator, tip calculator, mortgage calculator, shopping calculator, and more all wrapped up in a very user friendly and easy to use application.
* Shopping Calculator - Take the guess work out of the final price of sale items!
* Mortgage Calculator - Find out exactly what that dream home will cost.
* Tip Calculator - Your waiter will love you for it!
* Percentage Calculator - Calculate what percent one number is from another, or just simply find out how much a certain percentage will be.