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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 328 · 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 40% and then goes up by 10% more. By what percent has it gone up in all? =
  2. 2.A shop sells 3780 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  3. 3.The price of a school bag changes from ₹680 to ₹510. By what percent did it come down?
  4. 4.The price of a school bag changes from ₹980 to ₹490. By what percent did it come down?
  5. 5.The price of a bicycle is ₹2400. It goes up by 40%. What is the new price (in ₹)?
  6. 6.A water tank holds 1200 litres. 20% of the water is used. How many litres are left?
  7. 7.A price goes up by 10% and then goes up by 30% more. By what percent has it gone up in all? =
  8. 8.A shop sells 3060 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  9. 9.A water tank holds 4540 litres. 30% of the water is used. How many litres are left?
  10. 10.The price of a school bag changes from ₹3260 to ₹2445. By what percent did it come down?
  11. 11.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
  12. 12.A price goes up by 20% and then goes up by 10% more. By what percent has it gone up in all? =
  13. 13.A price goes up by 5% and then goes up by 20% more. By what percent has it gone up in all? =
  14. 14.A water tank holds 1340 litres. 25% of the water is used. How many litres are left?
  15. 15.A shop sells 4320 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  16. 16.A shop sells 1640 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  17. 17.A water tank holds 4920 litres. 10% of the water is used. How many litres are left?
  18. 18.A town has 4880 people. Its population grows by 30%. How many people live there now?
  19. 19.A water tank holds 1740 litres. 5% of the water is used. How many litres are left?
  20. 20.A price comes down by 15% and then comes down by 30% more. By what percent has it come down in all? =
  21. 21.A shop sells 3640 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  22. 22.The price of a school bag changes from ₹1120 to ₹1176. By what percent did it go up?
  23. 23.A water tank holds 420 litres. 50% of the water is used. How many litres are left?
  24. 24.A water tank holds 3520 litres. 15% of the water is used. How many litres are left?
  25. 25.A price comes down by 50% and then comes down by 20% more. By what percent has it come down in all? =
  26. 26.The price of a bicycle is ₹1200. It goes up by 15%. What is the new price (in ₹)?
  27. 27.The price of a bicycle is ₹80. It goes up by 5%. What is the new price (in ₹)?
  28. 28.The price of a school bag changes from ₹900 to ₹450. By what percent did it come down?
  29. 29.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
  30. 30.A water tank holds 3160 litres. 30% of the water is used. How many litres are left?
  31. 31.A water tank holds 840 litres. 30% of the water is used. How many litres are left?
  32. 32.The price of a school bag changes from ₹960 to ₹1056. By what percent did it go up?
  33. 33.The price of a bicycle is ₹2720. It goes up by 10%. What is the new price (in ₹)?
  34. 34.The price of a bicycle is ₹3960. It goes up by 15%. What is the new price (in ₹)?
  35. 35.A price comes down by 30% and then comes down by 15% more. By what percent has it come down in all? =
  36. 36.The price of a school bag changes from ₹1500 to ₹1575. By what percent did it go up?
  37. 37.The price of a bicycle is ₹880. It goes up by 5%. What is the new price (in ₹)?
  38. 38.The price of a school bag changes from ₹2080 to ₹2392. By what percent did it go up?
  39. 39.A price comes down by 25% and then comes down by 10% more. By what percent has it come down in all? =
  40. 40.The price of a school bag changes from ₹1440 to ₹1656. By what percent did it go up?

Answer key

  1. 54
  2. 5670
  3. 25
  4. 50
  5. 3360
  6. 960
  7. 43
  8. 3825
  9. 3178
  10. 25
  11. 19.25
  12. 32
  13. 26
  14. 1005
  15. 6480
  16. 2296
  17. 4428
  18. 6344
  19. 1653
  20. 40.5
  21. 4550
  22. 5
  23. 210
  24. 2992
  25. 60
  26. 1380
  27. 84
  28. 50
  29. 65
  30. 2212
  31. 588
  32. 10
  33. 2992
  34. 4554
  35. 40.5
  36. 5
  37. 924
  38. 15
  39. 32.5
  40. 15

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