US $1,200,000,000,000.00 in paper money disappeared.
But in percentage terms, 777.68 points it comes out to 6.98%.
To keep that in perspective, on October 28 and 29, 1929, Wall Street dropped a combined 24.55%.
And eleven years ago, on October 19, 1987, the Dow dropped 22.61%.
Now that was a stock market crash.