In future, if you want me to answer then you must ask in the Ask the Tutor Forum – this forum is for students to help each other 🙂
The non-prodution costs in the question have ‘$’000’ at the top of the column and are therefore given in thousands. Therefore the total is $5,600,000 (not $5,600) and so the unit cost is 5,600,000 / 350,000 = $16.