The profitability of a station is a value that allows to estimate the profit a station can offer per cycle. The calculation adds the average prices (base prices) of all goods produced in one cycle and reduces the result by the total cost of all goods that are directly needed for one cycle (production chains are not taken into consideration for this).
The profitability of a Vehicle factory is calculated like this:
[ Amount of Credits from selling the produced goods of one cycle (average prices) ] - [ Amount of Credits needed to buy the goods needed for one cycle (average prices) ]
= [ Avg. price of Vehicle x 1 + Avg. price of Scrap Metal x 1 ] - [ Avg. price of Rubber x 1 + Avg. price of Power Unit x 1 + avg. price of Energy Generator x1 + avg. price of Metal Plate x 5 + avg. price of Antigrav Unit x 1 + avg. price of Display x1 ]
= ( 77,087 Credits x 1 + 25 Credits x 1) - ( 686 Credits x 1 + 1,211 Credits x 1 + 15,957 Credits x 1 + 792 Credits x 5 + 25,391 Credits x 1 + 7,858 Credits x 1 ) = 22,049 Credits
Note that the production of one vehicle needs five metal plates, which is why the related value has been multiplied.