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Formula & cofactor methods

Edit the cofactor curve, credential weights and multipliers directly. Changes stay in this draft — nothing is recalculated anywhere until you save the method and apply it as active.

Formulas in this draft

  • score = Σ (credential count × weight)
  • cofactor = 1.5 + 2.4 × score^0.5
  • price = height(in) × width(in) × cofactor × medium factor × condition factor
  • photography price = cofactor × $45 × size bracket × edition factor × condition factor
  • range = 0.8× to 1.3× the price, rounded to $50

Cofactor curve

Credential weights (points per unit)

Medium factors

Condition factors

Photography, range and rounding

Unsaved changes vs “House method (default)”

No changes in this draft.

Version history — House method (default)

No versions yet. Saving this method records version 1.