What do these calculators do?
For a stated amount of money available in a season, each calculator will deduct fixed overheads and salaries and then calculate the areas of a selected crop which can be produced at each level of technology for the net sum available.
The calculatorsd also estimate the aggregate gross margina attainable from these feasible areas.
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Information used
The calcuator uses information supplied by the user on the total cash available for the production season (c) and the total fixed overheads and salaries for the season (f). The rest of the information is taken from the Crop Data Sheet information database.
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Formulae
Net cash (n) = c - f
Total variable cost = tvc*
Feasible area of crop at each level of technology (a) = n/tvc
Aggregate gross margin attained for area at each level of technology (agm) = GM x a
Besides using the information in the data base on good, average and poor technologies the system presents the results in a graphic form and includes intermediate technology levels between good and average inputs and gross margins and average and poor.
* For each crop and each level of technology in the data base
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