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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 984 · 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 ₹1560. It goes up by 30%. What is the new price (in ₹)?
  2. 2.A price goes up by 5% and then goes up by 10% more. By what percent has it gone up in all? =
  3. 3.A water tank holds 1900 litres. 10% of the water is used. How many litres are left?
  4. 4.The price of a school bag changes from ₹3820 to ₹3629. By what percent did it come down?
  5. 5.A shop sells 3880 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  6. 6.A price comes down by 20% and then comes down by 5% more. By what percent has it come down in all? =
  7. 7.A price goes up by 5% and then goes up by 25% more. By what percent has it gone up in all? =
  8. 8.The price of a school bag changes from ₹2060 to ₹2163. By what percent did it go up?
  9. 9.A price comes down by 15% and then comes down by 50% more. By what percent has it come down in all? =
  10. 10.A water tank holds 3720 litres. 15% of the water is used. How many litres are left?
  11. 11.The price of a bicycle is ₹300. It goes up by 25%. What is the new price (in ₹)?
  12. 12.A price goes up by 10% and then goes up by 25% more. By what percent has it gone up in all? =
  13. 13.The price of a school bag changes from ₹3940 to ₹4925. By what percent did it go up?
  14. 14.A water tank holds 2620 litres. 30% of the water is used. How many litres are left?
  15. 15.A shop sells 3360 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  16. 16.A shop sells 3960 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  17. 17.The price of a school bag changes from ₹800 to ₹840. By what percent did it go up?
  18. 18.A water tank holds 1500 litres. 50% of the water is used. How many litres are left?
  19. 19.The price of a school bag changes from ₹800 to ₹640. By what percent did it come down?
  20. 20.A shop sells 4700 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  21. 21.A town has 4540 people. Its population grows by 40%. How many people live there now?
  22. 22.The price of a bicycle is ₹740. It goes up by 25%. What is the new price (in ₹)?
  23. 23.A price goes up by 50% and then comes down by 5%. By what percent has it gone up in all? =
  24. 24.A water tank holds 2840 litres. 5% of the water is used. How many litres are left?
  25. 25.A water tank holds 2400 litres. 40% of the water is used. How many litres are left?
  26. 26.The price of a bicycle is ₹720. It goes up by 10%. What is the new price (in ₹)?
  27. 27.The price of a school bag changes from ₹2560 to ₹3840. By what percent did it go up?
  28. 28.A water tank holds 1380 litres. 5% of the water is used. How many litres are left?
  29. 29.A price comes down by 10% and then comes down by 10% more. By what percent has it come down in all? =
  30. 30.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
  31. 31.A water tank holds 3560 litres. 50% of the water is used. How many litres are left?
  32. 32.A town has 4600 people. Its population grows by 10%. How many people live there now?
  33. 33.The price of a school bag changes from ₹1780 to ₹2314. By what percent did it go up?
  34. 34.The price of a school bag changes from ₹4240 to ₹2968. By what percent did it come down?
  35. 35.The price of a school bag changes from ₹1440 to ₹2160. By what percent did it go up?
  36. 36.A price comes down by 20% and then comes down by 15% more. By what percent has it come down in all? =
  37. 37.The price of a school bag changes from ₹4640 to ₹6496. By what percent did it go up?
  38. 38.The price of a school bag changes from ₹920 to ₹1288. By what percent did it go up?
  39. 39.The price of a school bag changes from ₹1820 to ₹2002. By what percent did it go up?
  40. 40.A price goes up by 25% and then goes up by 40% more. By what percent has it gone up in all? =

Answer key

  1. 2028
  2. 15.5
  3. 1710
  4. 5
  5. 5044
  6. 24
  7. 31.25
  8. 5
  9. 57.5
  10. 3162
  11. 375
  12. 37.5
  13. 25
  14. 1834
  15. 4032
  16. 5940
  17. 5
  18. 750
  19. 20
  20. 5405
  21. 6356
  22. 925
  23. 42.5
  24. 2698
  25. 1440
  26. 792
  27. 50
  28. 1311
  29. 19
  30. 47
  31. 1780
  32. 5060
  33. 30
  34. 30
  35. 50
  36. 32
  37. 40
  38. 40
  39. 10
  40. 75

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