Question: What was the percentage that the Dow Jones fell when the US had the highest unemployment rate?

Knowledge 1: Unemployment in the United States
During the 1940s, the U.S Department of Labor, specifically the Bureau of Labor Statistics (BLS), began collecting employment information via monthly household surveys. Other data series are available back to 1912. The unemployment rate has varied from as low as 1% during World War I to as high as 25% during the Great Depression. More recently, it reached peaks of 10.8% in November 1982 and 10.0% in October 2009. Unemployment tends to rise during recessions and fall during expansions. From 1948 to 2015, unemployment averaged about 5.8%. There is always some unemployment, with persons changing jobs and new entrants to the labor force searching for jobs. This is referred to as frictional unemployment. For this reason, the Federal Reserve targets the natural rate of unemployment or NAIRU, which was around 5% in 2015. A rate of unemployment below this level would be consistent with rising inflation in theory, as a shortage of workers would bid wages (and thus prices) upward. [SEP] Knowledge 2: Tanzania
Market strategist Phil Dow believes distinctions exist "between the current market malaise" and the Great Depression. He says the Dow Jones average's fall of more than 50% over a period of 17 months is similar to a 54.7% fall in the Great Depression, followed by a total drop of 89% over the following 16 months. "It's very troubling if you have a mirror image," said Dow. Floyd Norris, the chief financial correspondent of The New York Times, wrote in a blog entry in March 2009 that the decline has not been a mirror image of the Great Depression, explaining that although the decline amounts were nearly the same at the time, the rates of decline had started much faster in 2007, and that the past year had only ranked eighth among the worst recorded years of percentage drops in the Dow. The past two years ranked third, however.
Knowledge 1: Unemployment in the United States
During the 1940s, the U.S Department of Labor, specifically the Bureau of Labor Statistics (BLS), began collecting employment information via monthly household surveys. Other data series are available back to 1912. The unemployment rate has varied from as low as 1% during World War I to as high as 25% during the Great Depression. More recently, it reached peaks of 10.8% in November 1982 and 10.0% in October 2009. Unemployment tends to rise during recessions and fall during expansions. From 1948 to 2015, unemployment averaged about 5.8%. There is always some unemployment, with persons changing jobs and new entrants to the labor force searching for jobs. This is referred to as frictional unemployment. For this reason, the Federal Reserve targets the natural rate of unemployment or NAIRU, which was around 5% in 2015. A rate of unemployment below this level would be consistent with rising inflation in theory, as a shortage of workers would bid wages (and thus prices) upward. [SEP] Knowledge 2: Black Monday (1987)
In finance, Black Monday refers to Monday, October 19, 1987, when stock markets around the world crashed. The crash began in Hong Kong and spread west to Europe, hitting the United States after other markets had already declined by a lot. The Dow Jones Industrial Average (DJIA) fell exactly 508 points to 1,738.74 (22.61%). In Australia and New Zealand, the 1987 crash is also referred to as ``Black Tuesday ''because of the time zone difference.
Knowledge 1: Unemployment in the United States
During the 1940s, the U.S Department of Labor, specifically the Bureau of Labor Statistics (BLS), began collecting employment information via monthly household surveys. Other data series are available back to 1912. The unemployment rate has varied from as low as 1% during World War I to as high as 25% during the Great Depression. More recently, it reached peaks of 10.8% in November 1982 and 10.0% in October 2009. Unemployment tends to rise during recessions and fall during expansions. From 1948 to 2015, unemployment averaged about 5.8%. There is always some unemployment, with persons changing jobs and new entrants to the labor force searching for jobs. This is referred to as frictional unemployment. For this reason, the Federal Reserve targets the natural rate of unemployment or NAIRU, which was around 5% in 2015. A rate of unemployment below this level would be consistent with rising inflation in theory, as a shortage of workers would bid wages (and thus prices) upward. [SEP] Knowledge 2: Black Monday (1987)
In finance, Black Monday refers to Monday, October 19, 1987, when stock markets around the world crashed, shedding a huge value in a very short time. The crash began in Hong Kong and spread west to Europe, hitting the United States after other markets had already declined by a significant margin. The Dow Jones Industrial Average (DJIA) fell exactly 508 points to 1,738.74 (22.61%). In Australia and New Zealand, the 1987 crash is also referred to as ``Black Tuesday ''because of the time zone difference.

Answer: 54.7%