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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 547 · 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 bicycle is ₹320. It goes up by 40%. What is the new price (in ₹)?
  2. 2.A shop sells 2900 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  3. 3.A water tank holds 4020 litres. 5% of the water is used. How many litres are left?
  4. 4.A price goes up by 50% and then goes up by 40% more. By what percent has it gone up in all? =
  5. 5.A price goes up by 40% and then goes up by 10% more. By what percent has it gone up in all? =
  6. 6.A price goes up by 20% and then goes up by 50% more. By what percent has it gone up in all? =
  7. 7.A price comes down by 15% and then comes down by 15% more. By what percent has it come down in all? =
  8. 8.The price of a school bag changes from ₹3340 to ₹3507. By what percent did it go up?
  9. 9.A price comes down by 10% and then comes down by 30% more. By what percent has it come down in all? =
  10. 10.A water tank holds 1700 litres. 15% of the water is used. How many litres are left?
  11. 11.The price of a school bag changes from ₹3060 to ₹3366. By what percent did it go up?
  12. 12.The price of a school bag changes from ₹1400 to ₹1260. By what percent did it come down?
  13. 13.A water tank holds 1920 litres. 15% of the water is used. How many litres are left?
  14. 14.A shop sells 1360 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  15. 15.A shop sells 400 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  16. 16.A water tank holds 3820 litres. 20% of the water is used. How many litres are left?
  17. 17.The price of a school bag changes from ₹4220 to ₹4431. By what percent did it go up?
  18. 18.The price of a bicycle is ₹960. It goes up by 5%. What is the new price (in ₹)?
  19. 19.A price comes down by 25% and then comes down by 30% more. By what percent has it come down in all? =
  20. 20.A price goes up by 40% and then goes up by 25% more. By what percent has it gone up in all? =
  21. 21.The price of a bicycle is ₹1140. It goes up by 30%. What is the new price (in ₹)?
  22. 22.A price comes down by 15% and then comes down by 5% more. By what percent has it come down in all? =
  23. 23.The price of a bicycle is ₹4820. It goes up by 10%. What is the new price (in ₹)?
  24. 24.The price of a school bag changes from ₹1800 to ₹2160. By what percent did it go up?
  25. 25.A price goes up by 10% and then goes up by 15% more. By what percent has it gone up in all? =
  26. 26.A price comes down by 50% and then comes down by 30% more. By what percent has it come down in all? =
  27. 27.The price of a school bag changes from ₹1400 to ₹980. By what percent did it come down?
  28. 28.The price of a school bag changes from ₹1700 to ₹1785. By what percent did it go up?
  29. 29.A price goes up by 50% and then comes down by 30%. By what percent has it gone up in all? =
  30. 30.The price of a school bag changes from ₹2420 to ₹2541. By what percent did it go up?
  31. 31.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =
  32. 32.A water tank holds 1760 litres. 15% of the water is used. How many litres are left?
  33. 33.The price of a school bag changes from ₹1340 to ₹938. By what percent did it come down?
  34. 34.The price of a school bag changes from ₹3780 to ₹3024. By what percent did it come down?
  35. 35.The price of a school bag changes from ₹4260 to ₹5325. By what percent did it go up?
  36. 36.A water tank holds 4560 litres. 20% of the water is used. How many litres are left?
  37. 37.A water tank holds 2100 litres. 40% of the water is used. How many litres are left?
  38. 38.A town has 4140 people. Its population grows by 40%. How many people live there now?
  39. 39.The price of a school bag changes from ₹4280 to ₹4066. By what percent did it come down?
  40. 40.A water tank holds 4740 litres. 20% of the water is used. How many litres are left?

Answer key

  1. 448
  2. 4350
  3. 3819
  4. 110
  5. 54
  6. 80
  7. 27.75
  8. 5
  9. 37
  10. 1445
  11. 10
  12. 10
  13. 1632
  14. 1428
  15. 600
  16. 3056
  17. 5
  18. 1008
  19. 47.5
  20. 75
  21. 1482
  22. 19.25
  23. 5302
  24. 20
  25. 26.5
  26. 65
  27. 30
  28. 5
  29. 5
  30. 5
  31. 110
  32. 1496
  33. 30
  34. 20
  35. 25
  36. 3648
  37. 1260
  38. 5796
  39. 5
  40. 3792

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