Default values are given in the table below. Amend them to your
values and then press the calculate button to see the predicted
productivity. You may use scientific notation for large numbers but please
pay particular attention to the required units of the data entry. If you need
an explanation of any of the items then please use the hyperlink pop-up for that
item. Please note that you will need Javascript to be enabled for the pop-up
explanations.
You may alter any of these variables as you wish and then submit the calculation.