Description
Compute yield difference/input difference, multiply by output price, then subtract inputPrice for marginalNet.
Farm economic comparisons depend on fixed/variable costs, opportunity-cost assumptions, depreciation, discount periods and explicit payment limits. A partial margin or finite-difference response differs from total profitability or an optimization-derived shadow price. Supplied rates and tax flags do not determine actual obligations.
Compute yield difference/input difference, multiply by output price, then subtract inputPrice for marginalNet.
When to use this tool
Use Fertilizer Marginal Response One Step when checking the stated caller-defined cost, margin, cap, valuation or sensitivity term.
How to use the tool and how it works
- Enter firstInput, secondInput, firstYield, secondYield, outputPrice, inputPrice. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read marginalYield, marginalValue, marginalNet. Use the output convention below.
Require secondInput>firstInput and nonnegative input/output prices. Compute yield difference/input difference, multiply by output price, then subtract inputPrice for marginalNet.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstInput | First Input | Required. Finite number. |
| secondInput | Second Input | Required. Finite number. |
| firstYield | First Yield | Required. Finite number. |
| secondYield | Second Yield | Required. Finite number. |
| outputPrice | Output Price | Required. Finite number; minimum 0. |
| inputPrice | Currency per input increment unit, subtracted from marginal value per input unit. | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| marginalYield | Marginal Yield | Required. Finite number. |
| marginalValue | Marginal Value | Required. Finite number. |
| marginalNet | Marginal Net | Required. Finite number. |
{
"input": {
"firstInput": 10,
"secondInput": 20,
"firstYield": 100,
"secondYield": 130,
"outputPrice": 2,
"inputPrice": 4
},
"output": {
"marginalYield": 3,
"marginalValue": 6,
"marginalNet": 2
}
}Limitations and assumptions
- A finite observed step is not a fitted derivative, causal fertilizer response or application recommendation.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use a complete verified budget and suitable economic analysis; consult qualified financial/legal professionals for actual investment, contract or tax decisions.
References
Similar or alternative tools
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