Most cash registers have a common, basic setup. You would key in the amount of the purchase, hit the subtotal and then the final cash sale. This will include any taxes and such for the area you are in.
There is also a program called VirtualClerk that is much the same but also can work as a time clock as well for several employees. You can find more information here: freedownloadscenter.com/Business/Misc__F....
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