How accurate are coin-counting machines? If you are like me you tend to question almost everything. So why not question the accuracy of a coin counting machine. It’s your money and it should be counted with as much accuracy as possible. I searched for articles or studies on just that and what I found wasn’t exactly what I expected. An Action News Special Investigation done by channel 6 ABC tested 3 separate options for coin counting kiosks. They tested TD Bank, PNC Bank, and Coinstar kiosks. Out of the 3 only Coinstar gave back the exact amount. TD and PNC bank either gave back extra or shorted the customer. This may look like a win for Coinstar but even if they gave back the correct amount they also charge an 11.9% fee for exchanging your coins. So you either use an inaccurate machine or you pay a fee.   Why would a retailer or a consumer want a coin counting kiosk? So with all the discrepancy in the accuracy of coin counting, why would a retailer want one in their…