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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 122 · 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 bicycle is ₹4460. It goes up by 20%. What is the new price (in ₹)?
  2. 2.A water tank holds 1960 litres. 10% of the water is used. How many litres are left?
  3. 3.The price of a school bag changes from ₹2560 to ₹2944. By what percent did it go up?
  4. 4.A price goes up by 30% and then goes up by 5% more. By what percent has it gone up in all? =
  5. 5.A shop sells 3760 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  6. 6.A water tank holds 2180 litres. 25% of the water is used. How many litres are left?
  7. 7.A price comes down by 25% and then comes down by 15% more. By what percent has it come down in all? =
  8. 8.The price of a school bag changes from ₹3040 to ₹2584. By what percent did it come down?
  9. 9.A shop sells 3760 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  10. 10.The price of a school bag changes from ₹2940 to ₹2205. By what percent did it come down?
  11. 11.The price of a school bag changes from ₹3060 to ₹2907. By what percent did it come down?
  12. 12.A price comes down by 50% and then comes down by 40% more. By what percent has it come down in all? =
  13. 13.A water tank holds 260 litres. 50% of the water is used. How many litres are left?
  14. 14.The price of a school bag changes from ₹1340 to ₹1608. By what percent did it go up?
  15. 15.A town has 2880 people. Its population grows by 5%. How many people live there now?
  16. 16.A water tank holds 4700 litres. 40% of the water is used. How many litres are left?
  17. 17.A water tank holds 1100 litres. 20% of the water is used. How many litres are left?
  18. 18.A town has 260 people. Its population grows by 20%. How many people live there now?
  19. 19.The price of a school bag changes from ₹4320 to ₹2592. By what percent did it come down?
  20. 20.A water tank holds 520 litres. 5% of the water is used. How many litres are left?
  21. 21.The price of a school bag changes from ₹2520 to ₹2898. By what percent did it go up?
  22. 22.A water tank holds 3340 litres. 20% of the water is used. How many litres are left?
  23. 23.A town has 980 people. Its population grows by 30%. How many people live there now?
  24. 24.A shop sells 4300 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  25. 25.A town has 620 people. Its population grows by 10%. How many people live there now?
  26. 26.The price of a school bag changes from ₹2860 to ₹2002. By what percent did it come down?
  27. 27.A town has 3800 people. Its population grows by 50%. How many people live there now?
  28. 28.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
  29. 29.A water tank holds 120 litres. 15% of the water is used. How many litres are left?
  30. 30.A price goes up by 40% and then comes down by 25%. By what percent has it gone up in all? =
  31. 31.A town has 220 people. Its population grows by 25%. How many people live there now?
  32. 32.A water tank holds 2780 litres. 20% of the water is used. How many litres are left?
  33. 33.A price comes down by 50% and then comes down by 30% more. By what percent has it come down in all? =
  34. 34.A water tank holds 4400 litres. 10% of the water is used. How many litres are left?
  35. 35.A water tank holds 2980 litres. 20% of the water is used. How many litres are left?
  36. 36.The price of a school bag changes from ₹4700 to ₹5170. By what percent did it go up?
  37. 37.A price goes up by 30% and then goes up by 25% more. By what percent has it gone up in all? =
  38. 38.The price of a school bag changes from ₹400 to ₹360. By what percent did it come down?
  39. 39.A water tank holds 540 litres. 50% of the water is used. How many litres are left?
  40. 40.A water tank holds 1740 litres. 25% of the water is used. How many litres are left?

Answer key

  1. 5352
  2. 1764
  3. 15
  4. 36.5
  5. 4888
  6. 1635
  7. 36.25
  8. 15
  9. 5640
  10. 25
  11. 5
  12. 70
  13. 130
  14. 20
  15. 3024
  16. 2820
  17. 880
  18. 312
  19. 40
  20. 494
  21. 15
  22. 2672
  23. 1274
  24. 4515
  25. 682
  26. 30
  27. 5700
  28. 32.25
  29. 102
  30. 5
  31. 275
  32. 2224
  33. 65
  34. 3960
  35. 2384
  36. 10
  37. 62.5
  38. 10
  39. 270
  40. 1305

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