Table 1. Estimated gross income, variable costs, fixed costs and income above selected costs per acre of corn per year
Item Unit Quantity Price Total Your farm
Gross income
   Corn Bushel 125 $2.75 $343.75 _______________
Variable costs
   Seed Thousand 22 0.90 19.80 _______________
Fertilizer
  Nitrogen (N) Pound 150 0.25 37.50 _______________
  Phosphorus (P) Pound 75 0.25 18.75 _______________
  Potassium (K) Pound 100 0.16 16.00 _______________
Lime Ton 0.5 24.00 12.00 _______________
Crop chemicals
   Aatrex Quart 1 2.25 2.25 _______________
Lasso Quart 1.5 5.50 8.25 _______________
Furadan Pound 8 1.50 12.00 _______________
Fuel Gallon 5 0.90 4.50 _______________
Oil and lubricants (15 percent of
  fuel cost)		 Acre   0.68 _______________
Repairs (variable portion) Acre 1 8.00 8.00 _______________
Custom hire
   Harvest Acre 1 22.00 22.00 _______________
Haul Bushel 125 0.10 12.50 _______________
Dry Bushel 125 0.08 10.00 _______________
Hired labor Hour 0 - 0.00 _______________
Crop insurance Acre 1 5.50 5.50 _______________
Miscellaneous Acre 1 5.00 5.00 _______________
Interest on variable capital (6 months at 12 percent APR) 11.68 _______________
Total variable cost   $206.41 _______________
Fixed costs
Depreciation, interest on average investment, repairs, taxes
and insurance (based on 800 acres)		 30.00 _______________
Land charge 60.00 _______________
Total fixed costs   $ 90.00 _______________
Total variable and fixed costs $296.41 _______________
Income above variable costs $137.34 _______________
Income above variable and fixed costs $ 47.34 _______________

Income above variable and fixed costs for various yields per acre and prices per bushel

Yields Prices
$2.50 $2.75 $3.00
75 -99.37 -80.62 -61.87
100 -41.64 -16.64 8.36
125 16.09 47.34 78.59
150 73.82 111.32 148.82