The TCG Listing Price Calculator turns a card's fair market value into a ready-to-use listing price: enter the value, pick how aggressively to price below it, and generate a shareable image for your listing.
Seven discount tiers run from full price down to 30% off, each auto-rounded to a clean price, so you're never listing at an odd number like $38.47. Look up real eBay sold listings to find the right fair market value before you price.