Price not updating on change of quantity - Authorize.net

i am using the authorize.net widget and set-up my items for sale; however, when I change the quantity of the item, it does not update the price?

It seems the price is being updated normally on my pc. 

I request you to clear the browser cache which could be causing the issue. Please follow the steps provided in the document below :

http://www.wikihow.com/Clear-Your-Browser's-Cache 

This should resolve the issue. Please get back to us if you need further assistance. We are happy to assist you.