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Percent change as an expression

Grade 7 math · Fieldbook Learning

Name ______________________ Date __________

Replace p with the number in the expression for the new price.

  1. A price p is increased by 20%, so the new price is 1.2p. What is the new price when p = 30?
  2. A price p is decreased by 50%, so the new price is 0.5p. What is the new price when p = 60?
  3. A price p is decreased by 50%, so the new price is 0.5p. What is the new price when p = 30?
  4. A price p is decreased by 10%, so the new price is 0.9p. What is the new price when p = 50?
  5. A price p is increased by 50%, so the new price is 1.5p. What is the new price when p = 170?
  6. A price p is decreased by 50%, so the new price is 0.5p. What is the new price when p = 20?
  7. A price p is decreased by 20%, so the new price is 0.8p. What is the new price when p = 160?
  8. A price p is increased by 25%, so the new price is 1.25p. What is the new price when p = 200?
  9. A price p is increased by 40%, so the new price is 1.4p. What is the new price when p = 190?
  10. A price p is increased by 25%, so the new price is 1.25p. What is the new price when p = 280?
  11. A price p is decreased by 50%, so the new price is 0.5p. What is the new price when p = 250?
  12. A price p is decreased by 10%, so the new price is 0.9p. What is the new price when p = 280?
  13. A price p is increased by 20%, so the new price is 1.2p. What is the new price when p = 220?
  14. A price p is decreased by 50%, so the new price is 0.5p. What is the new price when p = 470?
  15. A price p is increased by 10%, so the new price is 1.1p. What is the new price when p = 350?
  16. A price p is decreased by 15%, so the new price is 0.85p. What is the new price when p = 280?
  17. A price p is decreased by 5%, so the new price is 0.95p. What is the new price when p = 50?
  18. A price p is increased by 40%, so the new price is 1.4p. What is the new price when p = 150?
  19. A price p is decreased by 15%, so the new price is 0.85p. What is the new price when p = 40?
  20. A price p is decreased by 30%, so the new price is 0.7p. What is the new price when p = 390?
More free practice: fieldbooklearning.com/ca/practice/grade-7/percent-change-as-an-expression/

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Answer key: Percent change as an expression

  1. 36
  2. 30
  3. 15
  4. 45
  5. 255
  6. 10
  7. 128
  8. 250
  9. 266
  10. 350
  11. 125
  12. 252
  13. 264
  14. 235
  15. 385
  16. 238
  17. 47.5
  18. 210
  19. 34
  20. 273