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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 404 · 40 questions
TalentJR

The method (Start value is 100%): New value after a rise of p%: value + p% of value. After a fall: value − p% of value. Percent change = change ÷ starting value × 100. Two changes a% and b% one after the other: a + b + (a × b) ÷ 100, with a fall counted as minus.

NameDateTime takenScore ___ / 40
  1. 1.The price of a school bag changes from ₹4920 to ₹6888. By what percent did it go up?
  2. 2.A price comes down by 15% and then comes down by 40% more. By what percent has it come down in all? =
  3. 3.A town has 880 people. Its population grows by 5%. How many people live there now?
  4. 4.A price comes down by 30% and then comes down by 5% more. By what percent has it come down in all? =
  5. 5.A water tank holds 740 litres. 50% of the water is used. How many litres are left?
  6. 6.The price of a school bag changes from ₹220 to ₹110. By what percent did it come down?
  7. 7.A water tank holds 2420 litres. 10% of the water is used. How many litres are left?
  8. 8.A water tank holds 340 litres. 5% of the water is used. How many litres are left?
  9. 9.The price of a school bag changes from ₹2460 to ₹2214. By what percent did it come down?
  10. 10.A price comes down by 50% and then comes down by 25% more. By what percent has it come down in all? =
  11. 11.A price goes up by 40% and then goes up by 30% more. By what percent has it gone up in all? =
  12. 12.The price of a bicycle is ₹3540. It goes up by 5%. What is the new price (in ₹)?
  13. 13.The price of a school bag changes from ₹4800 to ₹3600. By what percent did it come down?
  14. 14.A water tank holds 4440 litres. 5% of the water is used. How many litres are left?
  15. 15.A price goes up by 25% and then goes up by 30% more. By what percent has it gone up in all? =
  16. 16.A town has 4080 people. Its population grows by 20%. How many people live there now?
  17. 17.A price comes down by 5% and then comes down by 25% more. By what percent has it come down in all? =
  18. 18.The price of a school bag changes from ₹1860 to ₹930. By what percent did it come down?
  19. 19.The price of a school bag changes from ₹2460 to ₹1230. By what percent did it come down?
  20. 20.A price goes up by 20% and then goes up by 5% more. By what percent has it gone up in all? =
  21. 21.A price goes up by 30% and then comes down by 10%. By what percent has it gone up in all? =
  22. 22.A shop sells 3400 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  23. 23.The price of a bicycle is ₹3480. It goes up by 20%. What is the new price (in ₹)?
  24. 24.The price of a bicycle is ₹1360. It goes up by 40%. What is the new price (in ₹)?
  25. 25.A town has 2640 people. Its population grows by 5%. How many people live there now?
  26. 26.A price comes down by 25% and then comes down by 20% more. By what percent has it come down in all? =
  27. 27.A price comes down by 15% and then comes down by 10% more. By what percent has it come down in all? =
  28. 28.A water tank holds 3740 litres. 30% of the water is used. How many litres are left?
  29. 29.A price goes up by 25% and then goes up by 5% more. By what percent has it gone up in all? =
  30. 30.The price of a bicycle is ₹1600. It goes up by 5%. What is the new price (in ₹)?
  31. 31.A price goes up by 30% and then goes up by 15% more. By what percent has it gone up in all? =
  32. 32.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
  33. 33.A water tank holds 260 litres. 10% of the water is used. How many litres are left?
  34. 34.A water tank holds 3800 litres. 40% of the water is used. How many litres are left?
  35. 35.A price goes up by 15% and then goes up by 50% more. By what percent has it gone up in all? =
  36. 36.A shop sells 1080 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  37. 37.The price of a school bag changes from ₹900 to ₹1350. By what percent did it go up?
  38. 38.A water tank holds 4920 litres. 30% of the water is used. How many litres are left?
  39. 39.A price goes up by 5% and then goes up by 15% more. By what percent has it gone up in all? =
  40. 40.A shop sells 420 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?

Answer key

  1. 40
  2. 49
  3. 924
  4. 33.5
  5. 370
  6. 50
  7. 2178
  8. 323
  9. 10
  10. 62.5
  11. 82
  12. 3717
  13. 25
  14. 4218
  15. 62.5
  16. 4896
  17. 28.75
  18. 50
  19. 50
  20. 26
  21. 17
  22. 4760
  23. 4176
  24. 1904
  25. 2772
  26. 40
  27. 23.5
  28. 2618
  29. 31.25
  30. 1680
  31. 49.5
  32. 32.25
  33. 234
  34. 2280
  35. 72.5
  36. 1512
  37. 50
  38. 3444
  39. 20.75
  40. 588

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