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Lesson 4: Solve Percent Change and Percent Error Problems — 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 video game that originally cost 40 dollars is now on sale for 32 dollars. What type of percent change does this price change represent?

    • A. Percent increase
    • B. Percent decrease
    • C. No percent change
    • D. Cannot be determined
  9. 9. The number of books in a library collection grew from 8,000 to 8,500. This change represents a percent ___.

  10. 10. Last year, a tree was 15 feet tall. This year, the same tree is 18 feet tall. Which statement correctly describes this change?

    • A. It is a percent decrease.
    • B. It is a percent increase.
    • C. There is no percent change.
    • D. The change is exactly 3%.