ASSIGNMENT
1. Is the percent of change from 79 to 56 a percent of increase or a percent of decrease?
2. A number is increased by 30%. Explain how you can find the new amount without first calculating the amount of increase. Identify the percent of change as an increase or a decrease. Then find the percent of change.
3. Original: 30 4. Original: 65 5. Original: 28 New: 45 New: 117 New: 7
6. Reptiles In 1981, there were 25 endangered and threatened species of reptiles in the U.S. In 2001, there were 36 species. By what percent did the number of these reptile species change from 1981 to 2001? Tell whether the amount of change is an increase or a decrease. re Find the amount of change from 1981 to 2001. rip Divide the amount of change by the original amount. Write the quotient as a percent.
