Schweser Book 4 P.119

Hi all, I am not seeing how schweser calculated the $51,000 near the bottom of the page on p.119. I am fine with the calculation of the gain on the futures, but just not sure about the $51,000. Thank you for your help in advance.

type the full problem

I would, but the whole problem is way too long.

The $51,000 is from the blue box above (1,339,800 - 1,288,800).

OMG…wow. Totally missed that. Thanks so much. Burned too many brain cells on that.

No worries.