True Market Value
TMV = baseline × (0.5 + 1.5 × demand) × megaBonus
Verdict thresholds
Δ ≥ +50% = Massive Win · +10% to +50% = Win · -10% to +10% = Fair · -50% to -10% = Loss · ≤ -50% = Massive Loss.
Untradable items
Items flagged tradable: false (e.g., Solitude Crystal) are blocked and assigned TMV = 0.