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Old Price Source Correction Factor Tool

Apply an explicitly supplied positive archival price correction factor without deriving historical conversion conventions.

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Description

Apply a supplied positive correction factor to a transcribed historical price.

Historical economic records depend on archival wording, accounting signs, local units, assigned values, denominations and date precision. A wage-day ratio is a comparison of supplied amounts rather than actual labor time. Preserving an account-year label or unit factor does not authenticate a historical price, practice or legal obligation.

Apply a supplied positive correction factor to a transcribed historical price.

When to use this tool

Use Old Price Source Correction Factor when you already have transcribedPrice, suppliedCorrectionFactor and need to apply a supplied positive correction factor to a transcribed historical price.

How to use the tool and how it works

  1. Enter transcribedPrice, suppliedCorrectionFactor. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read correctedPrice. Use the output convention below.

Require correctionFactor positive/finite; multiply the signed transcribed price by it.1

Input fieldMeaning and unitsAccepted input
transcribedPriceTranscribed PriceRequired. Finite number.
suppliedCorrectionFactorSupplied Correction FactorRequired. Finite number; strictly above 0.
Output fieldInterpretationReturned shape
correctedPriceCorrected PriceRequired. Finite number.
json
{
  "input": {
    "transcribedPrice": 12,
    "suppliedCorrectionFactor": 0.5
  },
  "output": {
    "correctedPrice": 6
  }
}

Limitations and assumptions

  • No transcription error, factor, inflation, purchasing power or appropriate historical comparison is identified.
  • 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

Consult the original ledger, archive and historical unit or monetary definitions when reconstructing an account. Reconcile period, commodity quality, currency and source corrections before comparing values; local labels and supplied conversions preserve only their declared assumptions.

References

  1. Calculation and input contract: economic-history/old-price-source-correction-factor — tool.io

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