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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 572 · 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 ₹2240 to ₹2352. By what percent did it go up?
  2. 2.A water tank holds 4220 litres. 5% of the water is used. How many litres are left?
  3. 3.A town has 2280 people. Its population grows by 30%. How many people live there now?
  4. 4.The price of a school bag changes from ₹680 to ₹476. By what percent did it come down?
  5. 5.The price of a school bag changes from ₹300 to ₹255. By what percent did it come down?
  6. 6.A town has 800 people. Its population grows by 25%. How many people live there now?
  7. 7.The price of a school bag changes from ₹2360 to ₹3304. By what percent did it go up?
  8. 8.A town has 3600 people. Its population grows by 30%. How many people live there now?
  9. 9.The price of a bicycle is ₹1420. It goes up by 15%. What is the new price (in ₹)?
  10. 10.A shop sells 2460 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
  11. 11.A water tank holds 1020 litres. 10% of the water is used. How many litres are left?
  12. 12.A price goes up by 50% and then goes up by 15% more. By what percent has it gone up in all? =
  13. 13.A town has 2360 people. Its population grows by 50%. How many people live there now?
  14. 14.A water tank holds 4180 litres. 15% of the water is used. How many litres are left?
  15. 15.A price goes up by 50% and then goes up by 50% more. By what percent has it gone up in all? =
  16. 16.A price goes up by 40% and then comes down by 5%. By what percent has it gone up in all? =
  17. 17.A price goes up by 50% and then goes up by 5% more. By what percent has it gone up in all? =
  18. 18.A price comes down by 50% and then comes down by 25% more. By what percent has it come down in all? =
  19. 19.The price of a school bag changes from ₹1260 to ₹1071. By what percent did it come down?
  20. 20.The price of a bicycle is ₹4940. It goes up by 30%. What is the new price (in ₹)?
  21. 21.A price goes up by 50% and then comes down by 15%. By what percent has it gone up in all? =
  22. 22.The price of a school bag changes from ₹2240 to ₹2128. By what percent did it come down?
  23. 23.The price of a school bag changes from ₹3240 to ₹3726. By what percent did it go up?
  24. 24.A town has 4920 people. Its population grows by 30%. How many people live there now?
  25. 25.The price of a bicycle is ₹1600. It goes up by 15%. What is the new price (in ₹)?
  26. 26.A town has 1480 people. Its population grows by 10%. How many people live there now?
  27. 27.A shop sells 4140 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  28. 28.The price of a school bag changes from ₹4440 to ₹4884. By what percent did it go up?
  29. 29.A price goes up by 15% and then goes up by 30% more. By what percent has it gone up in all? =
  30. 30.A water tank holds 360 litres. 40% of the water is used. How many litres are left?
  31. 31.The price of a bicycle is ₹3960. It goes up by 50%. What is the new price (in ₹)?
  32. 32.A water tank holds 1420 litres. 5% of the water is used. How many litres are left?
  33. 33.The price of a school bag changes from ₹5000 to ₹5250. By what percent did it go up?
  34. 34.The price of a school bag changes from ₹4700 to ₹6580. By what percent did it go up?
  35. 35.The price of a school bag changes from ₹1240 to ₹620. By what percent did it come down?
  36. 36.The price of a school bag changes from ₹1760 to ₹1320. By what percent did it come down?
  37. 37.A water tank holds 3100 litres. 40% of the water is used. How many litres are left?
  38. 38.The price of a school bag changes from ₹2880 to ₹2160. By what percent did it come down?
  39. 39.The price of a school bag changes from ₹660 to ₹627. By what percent did it come down?
  40. 40.The price of a school bag changes from ₹4980 to ₹4731. By what percent did it come down?

Answer key

  1. 5
  2. 4009
  3. 2964
  4. 30
  5. 15
  6. 1000
  7. 40
  8. 4680
  9. 1633
  10. 2952
  11. 918
  12. 72.5
  13. 3540
  14. 3553
  15. 125
  16. 33
  17. 57.5
  18. 62.5
  19. 15
  20. 6422
  21. 27.5
  22. 5
  23. 15
  24. 6396
  25. 1840
  26. 1628
  27. 4761
  28. 10
  29. 49.5
  30. 216
  31. 5940
  32. 1349
  33. 5
  34. 40
  35. 50
  36. 25
  37. 1860
  38. 25
  39. 5
  40. 5

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