PORTLAND, OR (December 3, 2014) – PayRange, the world’s simplest payment solution for machines, has launched an online calculator on their website which allows operators to discover the return on investment PayRange’s implementation can bring to their business. By filling out seven simple fields, the calculator dynamically displays the net return on investment along with the out-of-pocket costs associated with installing the PayRange BluKey™ on any number of an operator’s machines.