Per our rules, you need to state the sale quantity and item history in suggestions. Linking the screenshot with no other text is not enough.

https://forums.backpack.tf/topic/6033-rules-for-unusual-price-suggestions/#comment-657934

In this case, the compare link also shows 414 Keys, so that helps.

https://backpack.tf/profiles/76561198219926077#!/compare/1642032000/1642118400

If there was no way to find the history if it remained hidden (past suggestions, current listings somewhere backpack can't trace, etc.), then there'd be no way to know if there were prior sales.

https://backpack.tf/profiles/76561198873448577#!/compare/1642464000/1642550400 - No idea what it sold for

Keep that in mind for future suggestions.