Create a Select entry in the Input-Output section of your COBOL program's Environment Division. This is the file's name and where you want it located in your hard drive's file directory.

Divide the total product by the input of labor to find the average product. For example, a factory that produces 100 widgets with 10 workers has an average product of 10.

Goal seeking is finding the correct input when only the output is known. This is often done using the goal seek function in Microsoft Excel or what-if analysis via computer programs.