It is very common for people to quote the market drop from January 20th, or from January 1st, or from the peak of their primary stock or ETF.
Consider that the rapid rise in stocks after the election was not due to any actual policies, obviously, but was mainly the euphoria of an anticipated outcome for the following few years. Right before the election, half the country believed Kamela was going to win, and half the country believed Trump was going to win, so I suggest you compare stock and EFT prices from November 4th or a few days prior as the date to benchmark our current losses.
It's not nearly as dramatic a figure to wave around, I know, but it's kind of a touching grass view of the current situation.