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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 553 · 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 ₹4900 to ₹4165. By what percent did it come down?
  2. 2.The price of a bicycle is ₹80. It goes up by 20%. What is the new price (in ₹)?
  3. 3.A water tank holds 620 litres. 40% of the water is used. How many litres are left?
  4. 4.A water tank holds 680 litres. 25% of the water is used. How many litres are left?
  5. 5.The price of a school bag changes from ₹2820 to ₹2115. By what percent did it come down?
  6. 6.A price goes up by 50% and then goes up by 40% more. By what percent has it gone up in all? =
  7. 7.A price comes down by 15% and then comes down by 50% more. By what percent has it come down in all? =
  8. 8.A water tank holds 2100 litres. 20% of the water is used. How many litres are left?
  9. 9.The price of a school bag changes from ₹2400 to ₹1440. By what percent did it come down?
  10. 10.The price of a school bag changes from ₹3060 to ₹2142. By what percent did it come down?
  11. 11.A water tank holds 2540 litres. 25% of the water is used. How many litres are left?
  12. 12.A town has 2720 people. Its population grows by 25%. How many people live there now?
  13. 13.The price of a school bag changes from ₹60 to ₹84. By what percent did it go up?
  14. 14.A price comes down by 10% and then comes down by 5% more. By what percent has it come down in all? =
  15. 15.The price of a school bag changes from ₹2360 to ₹2832. By what percent did it go up?
  16. 16.The price of a school bag changes from ₹3200 to ₹2400. By what percent did it come down?
  17. 17.A water tank holds 820 litres. 10% of the water is used. How many litres are left?
  18. 18.A price goes up by 15% and then goes up by 5% more. By what percent has it gone up in all? =
  19. 19.The price of a school bag changes from ₹3100 to ₹2170. By what percent did it come down?
  20. 20.A town has 980 people. Its population grows by 5%. How many people live there now?
  21. 21.A water tank holds 4460 litres. 25% of the water is used. How many litres are left?
  22. 22.A water tank holds 2560 litres. 20% of the water is used. How many litres are left?
  23. 23.A price goes up by 20% and then goes up by 10% more. By what percent has it gone up in all? =
  24. 24.A water tank holds 2960 litres. 15% of the water is used. How many litres are left?
  25. 25.The price of a school bag changes from ₹1040 to ₹1144. By what percent did it go up?
  26. 26.A water tank holds 1680 litres. 25% of the water is used. How many litres are left?
  27. 27.A shop sells 1920 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  28. 28.A shop sells 780 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  29. 29.The price of a school bag changes from ₹980 to ₹1078. By what percent did it go up?
  30. 30.A water tank holds 2720 litres. 50% of the water is used. How many litres are left?
  31. 31.A price comes down by 25% and then comes down by 15% more. By what percent has it come down in all? =
  32. 32.The price of a bicycle is ₹4700. It goes up by 40%. What is the new price (in ₹)?
  33. 33.The price of a bicycle is ₹3440. It goes up by 50%. What is the new price (in ₹)?
  34. 34.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
  35. 35.A water tank holds 3780 litres. 40% of the water is used. How many litres are left?
  36. 36.A price goes up by 10% and then goes up by 5% more. By what percent has it gone up in all? =
  37. 37.The price of a bicycle is ₹3700. It goes up by 10%. What is the new price (in ₹)?
  38. 38.A water tank holds 4460 litres. 30% of the water is used. How many litres are left?
  39. 39.A water tank holds 1020 litres. 20% of the water is used. How many litres are left?
  40. 40.The price of a school bag changes from ₹2920 to ₹3066. By what percent did it go up?

Answer key

  1. 15
  2. 96
  3. 372
  4. 510
  5. 25
  6. 110
  7. 57.5
  8. 1680
  9. 40
  10. 30
  11. 1905
  12. 3400
  13. 40
  14. 14.5
  15. 20
  16. 25
  17. 738
  18. 20.75
  19. 30
  20. 1029
  21. 3345
  22. 2048
  23. 32
  24. 2516
  25. 10
  26. 1260
  27. 2112
  28. 1170
  29. 10
  30. 1360
  31. 36.25
  32. 6580
  33. 5160
  34. 21
  35. 2268
  36. 15.5
  37. 4070
  38. 3122
  39. 816
  40. 5

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