The Cultural Revolution caused a lot of problems in China. Production in factories was lowered because of the workers' political activities. It was also lowered because the people put in charge of the factories did not know how to run them. Transportation was made worse because a lot of trains were being used to take Red Guards around the country. Many scientists and engineers were put in jail or sent to work on the farms, which meant that their knowledge was lost. Because of these changes, the industrial output of China was reduced by 14 percent.