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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 52 · 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 ₹2380. It goes up by 10%. What is the new price (in ₹)?
  2. 2.A price goes up by 30% and then goes up by 20% more. By what percent has it gone up in all? =
  3. 3.A price goes up by 50% and then goes up by 15% more. By what percent has it gone up in all? =
  4. 4.The price of a school bag changes from ₹4300 to ₹2580. By what percent did it come down?
  5. 5.The price of a bicycle is ₹4900. It goes up by 25%. What is the new price (in ₹)?
  6. 6.A water tank holds 2500 litres. 20% of the water is used. How many litres are left?
  7. 7.A shop sells 3560 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  8. 8.The price of a school bag changes from ₹1060 to ₹1219. By what percent did it go up?
  9. 9.A price goes up by 25% and then goes up by 25% more. By what percent has it gone up in all? =
  10. 10.The price of a bicycle is ₹4860. It goes up by 15%. What is the new price (in ₹)?
  11. 11.A water tank holds 420 litres. 25% of the water is used. How many litres are left?
  12. 12.A price goes up by 20% and then goes up by 25% more. By what percent has it gone up in all? =
  13. 13.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
  14. 14.The price of a school bag changes from ₹4240 to ₹3392. By what percent did it come down?
  15. 15.A price goes up by 50% and then comes down by 10%. By what percent has it gone up in all? =
  16. 16.A shop sells 3080 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  17. 17.The price of a school bag changes from ₹760 to ₹1140. By what percent did it go up?
  18. 18.A town has 3540 people. Its population grows by 20%. How many people live there now?
  19. 19.The price of a bicycle is ₹4100. It goes up by 50%. What is the new price (in ₹)?
  20. 20.The price of a school bag changes from ₹1000 to ₹1100. By what percent did it go up?
  21. 21.A price goes up by 25% and then goes up by 20% more. By what percent has it gone up in all? =
  22. 22.The price of a school bag changes from ₹3980 to ₹3184. By what percent did it come down?
  23. 23.A water tank holds 1100 litres. 5% of the water is used. How many litres are left?
  24. 24.A water tank holds 4500 litres. 50% of the water is used. How many litres are left?
  25. 25.A price goes up by 10% and then goes up by 25% more. By what percent has it gone up in all? =
  26. 26.The price of a school bag changes from ₹2240 to ₹1792. By what percent did it come down?
  27. 27.A shop sells 1140 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  28. 28.A town has 3280 people. Its population grows by 15%. How many people live there now?
  29. 29.The price of a bicycle is ₹4500. It goes up by 20%. What is the new price (in ₹)?
  30. 30.A price comes down by 40% and then comes down by 40% more. By what percent has it come down in all? =
  31. 31.A water tank holds 660 litres. 20% of the water is used. How many litres are left?
  32. 32.A water tank holds 4200 litres. 30% of the water is used. How many litres are left?
  33. 33.A water tank holds 1000 litres. 50% of the water is used. How many litres are left?
  34. 34.A price goes up by 50% and then comes down by 30%. By what percent has it gone up in all? =
  35. 35.A water tank holds 1440 litres. 5% of the water is used. How many litres are left?
  36. 36.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
  37. 37.A water tank holds 3940 litres. 10% of the water is used. How many litres are left?
  38. 38.A water tank holds 1800 litres. 50% of the water is used. How many litres are left?
  39. 39.The price of a school bag changes from ₹4140 to ₹2898. By what percent did it come down?
  40. 40.The price of a bicycle is ₹3280. It goes up by 5%. What is the new price (in ₹)?

Answer key

  1. 2618
  2. 56
  3. 72.5
  4. 40
  5. 6125
  6. 2000
  7. 4628
  8. 15
  9. 56.25
  10. 5589
  11. 315
  12. 50
  13. 19.25
  14. 20
  15. 35
  16. 3696
  17. 50
  18. 4248
  19. 6150
  20. 10
  21. 50
  22. 20
  23. 1045
  24. 2250
  25. 37.5
  26. 20
  27. 1596
  28. 3772
  29. 5400
  30. 64
  31. 528
  32. 2940
  33. 500
  34. 5
  35. 1368
  36. 46
  37. 3546
  38. 900
  39. 30
  40. 3444

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