In the 19921993 school year in Pennsylvania there were 23 te
     In the 1992-1993 school year in Pennsylvania, there were 23 teachers\' strikes. In the 2006-2007 school year, there were 4 teachers strikes. Find the percent decrease. Round to one decimal place, if necessary.  Teachers\' strikes decreased by  CO 
  
  Solution
difference in the number of strikes = 23 - 4 = 19
divide the number of strikes in 1992-1993 to find the relative decrease: 19/23 = 0.8261
multiply by 100 to obtain the percent decrease: 100 X 0.8261 = 82.6%

