Question: What was the percentage the Dow Jones fell during the time the first cake mix come out?

Knowledge 1: Cake
During the Great Depression, there was a surplus of molasses and the need to provide easily made food to millions of economically depressed people in the United States. One company patented a cake - bread mix in order to deal with this economic situation, and thereby established the first line of cake in a box. In so doing, cake as it is known today became a mass - produced good rather than a home - or bakery - made specialty. [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: Cake
During the Great Depression, there was a surplus of molasses and the need to provide easily made food to millions of economically depressed people in the United States. One company patented a cake - bread mix in order to deal with this economic situation, and thereby established the first line of cake in a box. In so doing, cake as it is known today became a mass - produced good rather than a home - or bakery - made specialty. [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: Cake
During the Great Depression, there was a surplus of molasses and the need to provide easily made food to millions of economically depressed people in the United States. One company patented a cake - bread mix in order to deal with this economic situation, and thereby established the first line of cake in a box. In so doing, cake as it is known today became a mass - produced good rather than a home - or bakery - made specialty. [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%