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Largest percentage fall on the Dow Jones Industrial Average in one year

Largest percentage fall on the Dow Jones Industrial Average in one year
Who
Dow Jones Industrial Average
What
77.90 point(s)
Where
United States (New York City,)
When
31 December 1931
The biggest annual decline in the Dow Jones Industrial Average took place when the average closed at 77.90 points on 31 December 1931, or 52.6 per cent lower than the beginning of the year.