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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 691 · 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 school bag changes from ₹260 to ₹247. By what percent did it come down?
  2. 2.The price of a school bag changes from ₹120 to ₹102. By what percent did it come down?
  3. 3.A water tank holds 3620 litres. 25% of the water is used. How many litres are left?
  4. 4.A price comes down by 50% and then comes down by 25% more. By what percent has it come down in all? =
  5. 5.A shop sells 1500 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  6. 6.The price of a bicycle is ₹820. It goes up by 15%. What is the new price (in ₹)?
  7. 7.A price goes up by 15% and then comes down by 10%. By what percent has it gone up in all? =
  8. 8.The price of a school bag changes from ₹4280 to ₹6420. By what percent did it go up?
  9. 9.A water tank holds 1940 litres. 30% of the water is used. How many litres are left?
  10. 10.A price goes up by 5% and then goes up by 5% more. By what percent has it gone up in all? =
  11. 11.A shop sells 4760 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  12. 12.A shop sells 3960 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  13. 13.A water tank holds 4900 litres. 5% of the water is used. How many litres are left?
  14. 14.The price of a school bag changes from ₹1080 to ₹1134. By what percent did it go up?
  15. 15.A shop sells 3660 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  16. 16.A price comes down by 40% and then comes down by 10% more. By what percent has it come down in all? =
  17. 17.The price of a bicycle is ₹3360. It goes up by 40%. What is the new price (in ₹)?
  18. 18.A water tank holds 2880 litres. 10% of the water is used. How many litres are left?
  19. 19.The price of a school bag changes from ₹520 to ₹650. By what percent did it go up?
  20. 20.The price of a school bag changes from ₹1160 to ₹580. By what percent did it come down?
  21. 21.The price of a bicycle is ₹220. It goes up by 5%. What is the new price (in ₹)?
  22. 22.The price of a school bag changes from ₹880 to ₹924. By what percent did it go up?
  23. 23.A water tank holds 3360 litres. 50% of the water is used. How many litres are left?
  24. 24.The price of a bicycle is ₹4320. It goes up by 5%. What is the new price (in ₹)?
  25. 25.A town has 3000 people. Its population grows by 30%. How many people live there now?
  26. 26.A water tank holds 4000 litres. 25% of the water is used. How many litres are left?
  27. 27.The price of a school bag changes from ₹2700 to ₹1890. By what percent did it come down?
  28. 28.The price of a bicycle is ₹3500. It goes up by 30%. What is the new price (in ₹)?
  29. 29.The price of a school bag changes from ₹4220 to ₹5486. By what percent did it go up?
  30. 30.The price of a bicycle is ₹4260. It goes up by 15%. What is the new price (in ₹)?
  31. 31.A shop sells 4140 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  32. 32.A price goes up by 25% and then goes up by 5% more. By what percent has it gone up in all? =
  33. 33.A water tank holds 1460 litres. 10% of the water is used. How many litres are left?
  34. 34.A price comes down by 25% and then comes down by 5% more. By what percent has it come down in all? =
  35. 35.A town has 2000 people. Its population grows by 20%. How many people live there now?
  36. 36.A water tank holds 3180 litres. 40% of the water is used. How many litres are left?
  37. 37.A water tank holds 2440 litres. 20% of the water is used. How many litres are left?
  38. 38.A shop sells 880 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  39. 39.A town has 4500 people. Its population grows by 15%. How many people live there now?
  40. 40.A price comes down by 40% and then comes down by 5% more. By what percent has it come down in all? =

Answer key

  1. 5
  2. 15
  3. 2715
  4. 62.5
  5. 1575
  6. 943
  7. 3.5
  8. 50
  9. 1358
  10. 10.25
  11. 6188
  12. 4554
  13. 4655
  14. 5
  15. 3843
  16. 46
  17. 4704
  18. 2592
  19. 25
  20. 50
  21. 231
  22. 5
  23. 1680
  24. 4536
  25. 3900
  26. 3000
  27. 30
  28. 4550
  29. 30
  30. 4899
  31. 6210
  32. 31.25
  33. 1314
  34. 28.75
  35. 2400
  36. 1908
  37. 1952
  38. 1232
  39. 5175
  40. 43

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