NOTE: The calculator tabulates the savings that could be achieved by
filling a specified tank when it reaches 20% of capacity, instead of at the
user's currently specified rate. The calculator also provides a table indicating
the annual savings when a product is delivered at +- 10% of the Current Average
Gallons Delivered/Stop. The final table indicates the return on investment,
based on the annual savings calculated in the first table and equipment, data
center and installation costs entered in the inputs section.