That generally depends on the amount of foot traffic your location has on a daily basis. So let's figure that you have a total of 300 people a day coming through your doors, and let's say that you are charging a $2.25 surcharge per valid withdrawal. If you take the middle road that 4% of the people that see the ATM machine will use it. Then you can count on your new automated teller machine to generate you a minimum of 360 transactions per month at $2.25 per valid withdrawal. That comes out to $810 per month or a total of $9,720 per year. All that from one ATM machine at one location.