Directions: Calculate the Percent Increase or Decrease between the starting and ending quantities below. Round your answer to one decimal place. Start: 3
End: 10

Start: 40
End: 20

Start: 9
End: 20

Start: 100
End: 85

You bought some jeans for $55. Today they were on sale for $40. What was the percent decrease in price?

In 1987 the average price of gas was $0.94. Today the price of gas is about $3.00. What is the percent increase from 1987 to today?