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<!DOCTYPE html> <html> <script src="/lib/angular-1.4.8.min.js"></script> <body> <div data-ng-app="" data-ng-init="quantity=1;price=5"> <h2>Cost Calculator</h2> Quantity: <input type="number" ng-model="quantity"> Price: <input type="number" ng-model="price"> <p><b>Total in dollar:</b> {{quantity * price}}</p> </div> </body> </html>