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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 693 · 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 ₹1840 to ₹2116. By what percent did it go up?
  2. 2.A price goes up by 15% and then comes down by 5%. By what percent has it gone up in all? =
  3. 3.A town has 3500 people. Its population grows by 30%. How many people live there now?
  4. 4.The price of a bicycle is ₹1340. It goes up by 30%. What is the new price (in ₹)?
  5. 5.The price of a school bag changes from ₹2480 to ₹2108. By what percent did it come down?
  6. 6.A water tank holds 2740 litres. 15% of the water is used. How many litres are left?
  7. 7.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =
  8. 8.A water tank holds 2240 litres. 40% of the water is used. How many litres are left?
  9. 9.The price of a school bag changes from ₹1160 to ₹1334. By what percent did it go up?
  10. 10.A town has 1660 people. Its population grows by 15%. How many people live there now?
  11. 11.The price of a school bag changes from ₹1460 to ₹1387. By what percent did it come down?
  12. 12.The price of a school bag changes from ₹4240 to ₹2968. By what percent did it come down?
  13. 13.A price goes up by 25% and then goes up by 5% more. By what percent has it gone up in all? =
  14. 14.A price goes up by 50% and then comes down by 30%. By what percent has it gone up in all? =
  15. 15.A shop sells 1840 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  16. 16.The price of a bicycle is ₹4580. It goes up by 30%. What is the new price (in ₹)?
  17. 17.A water tank holds 1000 litres. 10% of the water is used. How many litres are left?
  18. 18.The price of a school bag changes from ₹3520 to ₹4928. By what percent did it go up?
  19. 19.The price of a school bag changes from ₹4480 to ₹3808. By what percent did it come down?
  20. 20.A price goes up by 30% and then goes up by 10% more. By what percent has it gone up in all? =
  21. 21.The price of a bicycle is ₹3660. It goes up by 20%. What is the new price (in ₹)?
  22. 22.A water tank holds 800 litres. 20% of the water is used. How many litres are left?
  23. 23.A water tank holds 2700 litres. 50% of the water is used. How many litres are left?
  24. 24.A price comes down by 50% and then comes down by 25% more. By what percent has it come down in all? =
  25. 25.A water tank holds 3060 litres. 25% of the water is used. How many litres are left?
  26. 26.A water tank holds 880 litres. 15% of the water is used. How many litres are left?
  27. 27.The price of a bicycle is ₹2000. It goes up by 30%. What is the new price (in ₹)?
  28. 28.The price of a school bag changes from ₹3400 to ₹3570. By what percent did it go up?
  29. 29.A water tank holds 3920 litres. 25% of the water is used. How many litres are left?
  30. 30.The price of a school bag changes from ₹2760 to ₹2484. By what percent did it come down?
  31. 31.The price of a school bag changes from ₹160 to ₹136. By what percent did it come down?
  32. 32.The price of a school bag changes from ₹3940 to ₹1970. By what percent did it come down?
  33. 33.The price of a school bag changes from ₹2920 to ₹3066. By what percent did it go up?
  34. 34.The price of a school bag changes from ₹3260 to ₹3586. By what percent did it go up?
  35. 35.A price comes down by 20% and then comes down by 5% more. By what percent has it come down in all? =
  36. 36.A water tank holds 440 litres. 20% of the water is used. How many litres are left?
  37. 37.The price of a school bag changes from ₹1440 to ₹1656. By what percent did it go up?
  38. 38.The price of a school bag changes from ₹1340 to ₹1541. By what percent did it go up?
  39. 39.A town has 3680 people. Its population grows by 50%. How many people live there now?
  40. 40.A shop sells 2340 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?

Answer key

  1. 15
  2. 9.25
  3. 4550
  4. 1742
  5. 15
  6. 2329
  7. 110
  8. 1344
  9. 15
  10. 1909
  11. 5
  12. 30
  13. 31.25
  14. 5
  15. 2300
  16. 5954
  17. 900
  18. 40
  19. 15
  20. 43
  21. 4392
  22. 640
  23. 1350
  24. 62.5
  25. 2295
  26. 748
  27. 2600
  28. 5
  29. 2940
  30. 10
  31. 15
  32. 50
  33. 5
  34. 10
  35. 24
  36. 352
  37. 15
  38. 15
  39. 5520
  40. 2808

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