You are manager of Grandpa's Mickey DeeDees, a popular fast food restaurant with a drive through. Take an order by clicking on the appropriate buttons (burger, fries, etc.). If the customer changes his mind, you can reduce the quantity of an item by clicking on the small button to the left of the item's quantity. When all items have been entered, click on the "Total" button and 5% tax will be added. If you want to have a sale, click on the "Yes" button under the 20% Sale label and prices will be adjusted. Enter the amount paid by the customer by clicking on the cash buttons at the bottom left and click on the "OK" button. The change will be calculated for you.