There are a number of computer programs that calculate and allow you to print postage statements. They range from very simple to complex and are priced accordingly. The United States Postal Service website, www.usps.com, has most postage statements and forms that periodical publishers use. They include postage statements that can be accessed and printed to be completed manually later. They also have “Postage Statement Wizard.“, by accessing this you can complete postage statements or forms on line, print and save.