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Lesson 3: Percent Increase and Decrease — Practice Questions

  1. 1. Ayodele's hourly pay was raised from 24.50 dollars to 25.48 dollars. What is the percent increase? Round to the nearest tenth of a percent. ___%

  2. 2. Annual student fees at a university rose from about 4,000 dollars to about 9,000 dollars. What is the percent increase? ___%

  3. 3. Annual global seafood consumption rose from 22 pounds per person to 38 pounds per person. Find the percent increase. (Round to the nearest tenth of a percent.) The percent increase is ___%.

  4. 4. At a coffee cart, a coffee costs 1.65 dollars. A customer pays with 2.00 dollars and leaves the change as a tip. What percent tip does she leave? (Round to the nearest whole percent.) The tip is ___%.

  5. 5. In one month, the median home price in a region rose from 225,400 dollars to 241,500 dollars. Find the percent increase. (Round to the nearest tenth of a percent.) The percent increase is ___%.

  6. 6. The price of a share of one stock rose from 12.50 dollars to 50.00 dollars. What is the percent increase? ___%

  7. 7. Tamanika's hourly pay was raised from 15.50 dollars to 17.55 dollars. What is the percent increase? Round to the nearest tenth of a percent. ___%

  8. 8. A store increases the price of a shirt by 10%, then offers a 10% discount on the new price. How does the final price compare to the original price?

    • A. The final price is higher than the original price.
    • B. The final price is lower than the original price.
    • C. The final price is the same as the original price.
    • D. It depends on the original price of the shirt.
  9. 9. The value of a painting was 200 dollars. It increased in value by 15% in one year, and then decreased by 15% the next year. What is its final value in dollars? ___

  10. 10. A city's population of 50,000 people grew by 10% and then shrank by 10% the following year. What was the city's population after the two changes? ___