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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 463 · 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.A price goes up by 25% and then goes up by 10% more. By what percent has it gone up in all? =
  2. 2.A shop sells 840 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  3. 3.A price comes down by 5% and then comes down by 30% more. By what percent has it come down in all? =
  4. 4.The price of a school bag changes from ₹920 to ₹828. By what percent did it come down?
  5. 5.A shop sells 2720 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  6. 6.The price of a school bag changes from ₹980 to ₹833. By what percent did it come down?
  7. 7.A water tank holds 300 litres. 30% of the water is used. How many litres are left?
  8. 8.The price of a school bag changes from ₹3500 to ₹2100. By what percent did it come down?
  9. 9.The price of a bicycle is ₹2840. It goes up by 30%. What is the new price (in ₹)?
  10. 10.The price of a bicycle is ₹3780. It goes up by 5%. What is the new price (in ₹)?
  11. 11.A town has 2260 people. Its population grows by 10%. How many people live there now?
  12. 12.A price comes down by 20% and then comes down by 25% more. By what percent has it come down in all? =
  13. 13.A price comes down by 40% and then comes down by 5% more. By what percent has it come down in all? =
  14. 14.A water tank holds 1920 litres. 25% of the water is used. How many litres are left?
  15. 15.The price of a school bag changes from ₹4320 to ₹4968. By what percent did it go up?
  16. 16.A price goes up by 30% and then comes down by 10%. By what percent has it gone up in all? =
  17. 17.A water tank holds 3940 litres. 15% of the water is used. How many litres are left?
  18. 18.The price of a school bag changes from ₹1980 to ₹2970. By what percent did it go up?
  19. 19.A water tank holds 1840 litres. 10% of the water is used. How many litres are left?
  20. 20.The price of a bicycle is ₹3480. It goes up by 5%. What is the new price (in ₹)?
  21. 21.A price goes up by 50% and then goes up by 15% more. By what percent has it gone up in all? =
  22. 22.A water tank holds 4540 litres. 30% of the water is used. How many litres are left?
  23. 23.The price of a school bag changes from ₹2440 to ₹3172. By what percent did it go up?
  24. 24.A water tank holds 680 litres. 15% of the water is used. How many litres are left?
  25. 25.The price of a school bag changes from ₹400 to ₹240. By what percent did it come down?
  26. 26.The price of a bicycle is ₹4200. It goes up by 20%. What is the new price (in ₹)?
  27. 27.The price of a bicycle is ₹2480. It goes up by 40%. What is the new price (in ₹)?
  28. 28.A water tank holds 1720 litres. 15% of the water is used. How many litres are left?
  29. 29.The price of a school bag changes from ₹1380 to ₹1242. By what percent did it come down?
  30. 30.A price goes up by 50% and then goes up by 25% more. By what percent has it gone up in all? =
  31. 31.A town has 60 people. Its population grows by 50%. How many people live there now?
  32. 32.A water tank holds 1060 litres. 5% of the water is used. How many litres are left?
  33. 33.A price comes down by 20% and then comes down by 30% more. By what percent has it come down in all? =
  34. 34.The price of a school bag changes from ₹3640 to ₹2912. By what percent did it come down?
  35. 35.A water tank holds 3540 litres. 15% of the water is used. How many litres are left?
  36. 36.The price of a school bag changes from ₹360 to ₹450. By what percent did it go up?
  37. 37.A price goes up by 25% and then goes up by 30% more. By what percent has it gone up in all? =
  38. 38.The price of a school bag changes from ₹1400 to ₹1820. By what percent did it go up?
  39. 39.The price of a school bag changes from ₹160 to ₹112. By what percent did it come down?
  40. 40.A water tank holds 960 litres. 25% of the water is used. How many litres are left?

Answer key

  1. 37.5
  2. 924
  3. 33.5
  4. 10
  5. 3264
  6. 15
  7. 210
  8. 40
  9. 3692
  10. 3969
  11. 2486
  12. 40
  13. 43
  14. 1440
  15. 15
  16. 17
  17. 3349
  18. 50
  19. 1656
  20. 3654
  21. 72.5
  22. 3178
  23. 30
  24. 578
  25. 40
  26. 5040
  27. 3472
  28. 1462
  29. 10
  30. 87.5
  31. 90
  32. 1007
  33. 44
  34. 20
  35. 3009
  36. 25
  37. 62.5
  38. 30
  39. 30
  40. 720

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