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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 26 · 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 town has 4500 people. Its population grows by 5%. How many people live there now?
  2. 2.The price of a bicycle is ₹2080. It goes up by 30%. What is the new price (in ₹)?
  3. 3.The price of a school bag changes from ₹1680 to ₹1932. By what percent did it go up?
  4. 4.A town has 4580 people. Its population grows by 25%. How many people live there now?
  5. 5.A price goes up by 30% and then goes up by 10% more. By what percent has it gone up in all? =
  6. 6.The price of a school bag changes from ₹3960 to ₹4950. By what percent did it go up?
  7. 7.A town has 2980 people. Its population grows by 10%. How many people live there now?
  8. 8.A shop sells 260 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  9. 9.The price of a school bag changes from ₹1180 to ₹885. By what percent did it come down?
  10. 10.A town has 1360 people. Its population grows by 40%. How many people live there now?
  11. 11.A water tank holds 2780 litres. 15% of the water is used. How many litres are left?
  12. 12.A shop sells 3080 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  13. 13.The price of a school bag changes from ₹1580 to ₹1343. By what percent did it come down?
  14. 14.The price of a bicycle is ₹60. It goes up by 5%. What is the new price (in ₹)?
  15. 15.A water tank holds 3180 litres. 25% of the water is used. How many litres are left?
  16. 16.A price goes up by 40% and then goes up by 25% more. By what percent has it gone up in all? =
  17. 17.A price comes down by 15% and then comes down by 10% more. By what percent has it come down in all? =
  18. 18.A shop sells 440 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  19. 19.The price of a school bag changes from ₹4460 to ₹4014. By what percent did it come down?
  20. 20.The price of a school bag changes from ₹380 to ₹456. By what percent did it go up?
  21. 21.The price of a bicycle is ₹2200. It goes up by 5%. What is the new price (in ₹)?
  22. 22.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
  23. 23.The price of a school bag changes from ₹1540 to ₹1771. By what percent did it go up?
  24. 24.A shop sells 5000 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  25. 25.The price of a bicycle is ₹820. It goes up by 5%. What is the new price (in ₹)?
  26. 26.A water tank holds 4000 litres. 15% of the water is used. How many litres are left?
  27. 27.The price of a bicycle is ₹4500. It goes up by 50%. What is the new price (in ₹)?
  28. 28.A water tank holds 2540 litres. 5% of the water is used. How many litres are left?
  29. 29.A shop sells 2080 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  30. 30.The price of a school bag changes from ₹4000 to ₹3800. By what percent did it come down?
  31. 31.A shop sells 2360 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  32. 32.A water tank holds 4100 litres. 20% of the water is used. How many litres are left?
  33. 33.The price of a school bag changes from ₹3080 to ₹4312. By what percent did it go up?
  34. 34.A price comes down by 40% and then comes down by 10% more. By what percent has it come down in all? =
  35. 35.The price of a school bag changes from ₹3780 to ₹5292. By what percent did it go up?
  36. 36.A price comes down by 40% and then comes down by 50% more. By what percent has it come down in all? =
  37. 37.The price of a school bag changes from ₹640 to ₹544. By what percent did it come down?
  38. 38.The price of a school bag changes from ₹2220 to ₹3330. By what percent did it go up?
  39. 39.A water tank holds 2720 litres. 40% of the water is used. How many litres are left?
  40. 40.A price goes up by 10% and then goes up by 5% more. By what percent has it gone up in all? =

Answer key

  1. 4725
  2. 2704
  3. 15
  4. 5725
  5. 43
  6. 25
  7. 3278
  8. 273
  9. 25
  10. 1904
  11. 2363
  12. 3388
  13. 15
  14. 63
  15. 2385
  16. 75
  17. 23.5
  18. 550
  19. 10
  20. 20
  21. 2310
  22. 36.25
  23. 15
  24. 6250
  25. 861
  26. 3400
  27. 6750
  28. 2413
  29. 2600
  30. 5
  31. 3304
  32. 3280
  33. 40
  34. 46
  35. 40
  36. 70
  37. 15
  38. 50
  39. 1632
  40. 15.5

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