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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 681 · 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 3160 people. Its population grows by 15%. How many people live there now?
  2. 2.The price of a bicycle is ₹760. It goes up by 40%. What is the new price (in ₹)?
  3. 3.A price goes up by 20% and then comes down by 5%. By what percent has it gone up in all? =
  4. 4.A shop sells 4080 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  5. 5.A shop sells 700 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  6. 6.The price of a school bag changes from ₹5000 to ₹4000. By what percent did it come down?
  7. 7.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
  8. 8.The price of a bicycle is ₹200. It goes up by 5%. What is the new price (in ₹)?
  9. 9.The price of a school bag changes from ₹3200 to ₹2560. By what percent did it come down?
  10. 10.A water tank holds 3080 litres. 20% of the water is used. How many litres are left?
  11. 11.A price goes up by 20% and then goes up by 50% more. By what percent has it gone up in all? =
  12. 12.The price of a school bag changes from ₹3940 to ₹2364. By what percent did it come down?
  13. 13.A price goes up by 40% and then comes down by 10%. By what percent has it gone up in all? =
  14. 14.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
  15. 15.The price of a school bag changes from ₹1840 to ₹1472. By what percent did it come down?
  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 shop sells 300 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  18. 18.The price of a school bag changes from ₹4040 to ₹4242. By what percent did it go up?
  19. 19.The price of a bicycle is ₹2880. It goes up by 25%. What is the new price (in ₹)?
  20. 20.The price of a school bag changes from ₹3840 to ₹4416. By what percent did it go up?
  21. 21.A town has 920 people. Its population grows by 15%. How many people live there now?
  22. 22.A shop sells 3400 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  23. 23.A water tank holds 1180 litres. 15% of the water is used. How many litres are left?
  24. 24.A shop sells 1420 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  25. 25.A price comes down by 30% and then comes down by 20% more. By what percent has it come down in all? =
  26. 26.The price of a bicycle is ₹2240. It goes up by 15%. What is the new price (in ₹)?
  27. 27.The price of a school bag changes from ₹2640 to ₹2112. By what percent did it come down?
  28. 28.A price comes down by 10% and then comes down by 25% more. By what percent has it come down in all? =
  29. 29.A shop sells 3620 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  30. 30.A shop sells 3040 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  31. 31.A water tank holds 180 litres. 10% of the water is used. How many litres are left?
  32. 32.The price of a school bag changes from ₹2760 to ₹3588. By what percent did it go up?
  33. 33.The price of a bicycle is ₹420. It goes up by 30%. What is the new price (in ₹)?
  34. 34.The price of a bicycle is ₹4800. It goes up by 20%. What is the new price (in ₹)?
  35. 35.A shop sells 1620 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  36. 36.The price of a school bag changes from ₹4200 to ₹5250. By what percent did it go up?
  37. 37.A price comes down by 40% and then comes down by 15% more. By what percent has it come down in all? =
  38. 38.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
  39. 39.A town has 3000 people. Its population grows by 15%. How many people live there now?
  40. 40.The price of a school bag changes from ₹880 to ₹616. By what percent did it come down?

Answer key

  1. 3634
  2. 1064
  3. 14
  4. 5100
  5. 1050
  6. 20
  7. 46
  8. 210
  9. 20
  10. 2464
  11. 80
  12. 40
  13. 26
  14. 21
  15. 20
  16. 75
  17. 315
  18. 5
  19. 3600
  20. 15
  21. 1058
  22. 3570
  23. 1003
  24. 1491
  25. 44
  26. 2576
  27. 20
  28. 32.5
  29. 4163
  30. 3952
  31. 162
  32. 30
  33. 546
  34. 5760
  35. 1863
  36. 25
  37. 49
  38. 47
  39. 3450
  40. 30

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