When meters are changed, this procedure provides for the billing of the interim usage that is left on the old meter before it was replaced. By entering the meter reading of the old meter when it is removed and entering the reading that is on the new meter (Usually ZERO), the interim usage can be calculated and saved for the next billing. At that time the interim usage will be added to the new usage and a “C” designation will be placed on the reading. After the meter readings are entered, the program will allow you to continue to enter the new meter information.