In July 2020, in the economy of Sandy Island, 10,000 people were employed and 1,000 were unemployed. During August 2020, 80 people lost their jobs and didn’t look for new ones, 20 people quit their jobs and retired, 150 people who had looked for work were hired, 50 people became discouraged workers, and 40 new graduates looked for work. Calculate the change in the unemployment rate from July 2020 to August 2020.