Sale Price Discount Calculator funktioniert nicht

With Sale Price you just type in the starting price and with easy to use sliders select your sales discount and additional markdown.  Whether you're an auction sniper or a bargain shopper, this tool can help you in your pursuit of scoring a crazy good deal - which will improve your bank account and your mood.  Make it quick and easy to find out your final sale price of your shopping item.  Your final price, including sales tax, updates automatically as you go.  Helps to make sure that when you checkout the price is right.  Sure you can do it with a calculator but do you want to stand there doing math problems in the store?  Can even be used as a simple tip calc.  A handy tool during Christmas, Chinese New Year, Black Friday and other holiday markdown seasons.