Not being from a row crop background I have a question.
$675 per acre plus your equipment usage
While I can understand $645 for the corn.
And I can understand a extra $30 charge for fertilizer lost by removing the stalks from the field
What I can not understand is equipment usage charge.
Would he not be using his equipment or hiring outsiders to harvest the grain.
In other words equipment; fuel; his time; should be covered in the price per bushel.
In fact we could stretch it out and say he should deduct from the $675 things like drying charges and trucking to the elevator since the neighbor is doing all the hauling unloading and blowing.
So am I seeing this wrong or did you have these type of thinking when you put down a price of $4.30 per bushel for the corn grain.