This Mickey Mantle 2006 Topps Chrome Mantle Home Run History Gold Superfractor 1/1 sold on May 30, 2020. It was positioned with a good title and overall SEO. It collected 592 views, 34 bids, and closed at $381. The market spoke. At auction, this card's worth is $381. One could reasonably assume that a BIN of $450 might even get it done.
The winner of this particular auction didn't waste any time. They relisted this exact card just six days later on June 5, 2020 for $1,995 BIN/OBO.
This Superfractor sold just six days prior for $381. Viewership and bid collection indicates the original auction easily achieved typical market exposure. I can see relisting in the range of 18-31% but beyond that, it's just eye candy. Free market economy aside, is asking over 423% more than this card's original sale price, and over 398% more to ship it too ambitious? You be the judge.