Ungraded vs Grade 8.0 Detective Comics #578 (1987): price difference
Detective Comics #578 (1987) value — Ungraded $11 vs Grade 8.0 $28. Grade 8.0 sells for 2.55× Ungraded (+155%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 2.55× (+155%) the Ungraded price — a $17 difference per comic.
Grade 6.0 sells for 2.09× (+109%) the Ungraded price — a $12 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #578 (1987), the jump from Ungraded to Grade 8.0 is worth $17 (2.55×) — 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).