If Nvidia drops at least 1% more than the average percentage drop of Google, Apple, and Amazon, AND the stock drops in absolute terms, then this market resolves YES. For example, if Google, Apple, and Amazon average a 2% drop, then Nvidia must drop 3% or more for this to resolve YES. However, if those three companies average a 3% increase, then Nvidia must still have a negative percentage drop in absolute terms; a 1% increase for instance would still resolve NO.