This excel spreadsheet is an example of Crop Budget / Farm Budget template.

To examine the relative profitability of crops user can input the data. This sheet can be used more than just budgeting it can be used to examine the relative profitability of crops. Economic impact summary gives a brief idea. Spreadsheet allow a user to assess crop profitability by comparing revenue less expenses for different crops.

For each input, enter the input name along with the units  (e.g., gallons, lbs., etc.), price per unit, and quantity used per acre or per ton harvested. Farm assumptions and buffer input prices is also to be considered.If you are not sure what you should include in and what to delete i think it is better to refer to the example given in the spreadsheet. Make suitable changes and build your own. Add tasks which you think that are important. Include machinery, equipment, vehicles and buildings.  This can be your complete machine inventory for the entire farm.