Art Appraisal Estimator

Artist Level's multiplier spans 0.3x (emerging/student) to 50x (museum/blue-chip) -- a roughly 167-fold range -- while Condition spans only 0.3x to 1.1x and Provenance only 1x to 3x, so among those capped, categorical factors, artist recognition carries by far the widest range. Size isn't capped the same way, though -- it scales the base price by area, so a very large canvas can still out-value a small one even at a much higher artist level, the way a genuinely large-format work often does in real art markets.

No -- Price/Sq Inch is completely unaffected by Largest Dimension. Estimated Value scales with the work's area (size squared, treating it as roughly square), and Price/Sq Inch divides that same value back down by the identical area, so the size term cancels out exactly. Price/Sq Inch instead reflects only Medium, Artist Level, Condition, Provenance, and Age.

All three are fixed multiples of the same underlying Estimated Value, not independently calculated figures: Auction Low is 0.5x, Auction High and Insurance Value are both set to the same 1.5x multiple, and Gallery Retail is higher still at 1.8x. This reflects a real pattern in the art market -- gallery retail prices run meaningfully above auction results, since galleries carry overhead and marketing costs that a private auction sale doesn't -- though note Insurance Value here matches Auction High exactly rather than the (typically higher) Gallery Retail figure some real-world replacement-cost appraisals use.

No -- age only adds a premium under specific conditions here: works over 50 years old by an artist at Regional Recognition level or higher get a 1.5x multiplier, while for less-recognized artists, only works over 100 years old get a smaller 1.3x boost. A 30-year-old painting by an emerging artist and a 90-year-old painting by an emerging artist receive the identical 1.0x age multiplier -- age alone doesn't create value without either sufficient artist recognition or a much longer span of time.