![Preposterous Proportions [Foil] #400](/api/images/junkpal-products/cards/preposterous-proportions-foil-400-magic-foundations-card/img0/cover.webp)
Ungraded vs PSA 10 Preposterous Proportions [Foil] #400: price difference
Preposterous Proportions [Foil] #400 value — Ungraded $12 vs PSA 10 $40. PSA 10 sells for 3.33× Ungraded (+233%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 3.33× (+233%) the Ungraded price — a $28 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Preposterous Proportions [Foil] #400, the jump from Ungraded to PSA 10 is worth $28 (3.33×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).