Originally Posted by aklim

But how would that be achieved? If I noticed a $10 discrepancy in my favor, would I go tell the cashier "Hey, you should have charged me $10 instead of $5."? Chances are that people will keep quiet and pocket the change. OTOH, if they are at a loss, they will holler and scream.

I think auditing the software will be easier since people are not honest. Lets look at it this way.

Scenario 1: I am overcharged I will go to customer service and get my money back and complain to some department for investigation.

Scenario 2: I am overcharged I will go to customer service and get my money back.

Scenario 3: I am undercharged. I go back and give them the money they are due and tell some department so they investigate.

Scenario 4: I am undercharged. I go back and give them the money they are due.

Which is the most likely to occur, in your opinion? Here is how I would rank them, from most likely to least likely. 2, 1, 3, 4. So, if I am right, how would you get an accurate figure?