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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 19 · 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 ₹4140. It goes up by 25%. What is the new price (in ₹)?
  2. 2.The price of a school bag changes from ₹3900 to ₹5460. By what percent did it go up?
  3. 3.The price of a school bag changes from ₹4460 to ₹5129. By what percent did it go up?
  4. 4.The price of a school bag changes from ₹1520 to ₹1672. By what percent did it go up?
  5. 5.The price of a school bag changes from ₹2640 to ₹1980. By what percent did it come down?
  6. 6.The price of a school bag changes from ₹220 to ₹264. By what percent did it go up?
  7. 7.A shop sells 1980 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  8. 8.A town has 2020 people. Its population grows by 20%. How many people live there now?
  9. 9.The price of a school bag changes from ₹2180 to ₹1308. By what percent did it come down?
  10. 10.The price of a bicycle is ₹1300. It goes up by 20%. What is the new price (in ₹)?
  11. 11.A town has 2460 people. Its population grows by 20%. How many people live there now?
  12. 12.A water tank holds 3680 litres. 15% of the water is used. How many litres are left?
  13. 13.The price of a bicycle is ₹1660. It goes up by 30%. What is the new price (in ₹)?
  14. 14.A town has 4760 people. Its population grows by 40%. How many people live there now?
  15. 15.A water tank holds 640 litres. 10% of the water is used. How many litres are left?
  16. 16.A water tank holds 1000 litres. 15% of the water is used. How many litres are left?
  17. 17.A town has 1540 people. Its population grows by 10%. How many people live there now?
  18. 18.A water tank holds 3640 litres. 5% of the water is used. How many litres are left?
  19. 19.The price of a bicycle is ₹120. It goes up by 15%. What is the new price (in ₹)?
  20. 20.The price of a school bag changes from ₹1760 to ₹2640. By what percent did it go up?
  21. 21.The price of a school bag changes from ₹2820 to ₹3525. By what percent did it go up?
  22. 22.A price goes up by 40% and then goes up by 25% more. By what percent has it gone up in all? =
  23. 23.A water tank holds 4160 litres. 5% of the water is used. How many litres are left?
  24. 24.The price of a bicycle is ₹1580. It goes up by 30%. What is the new price (in ₹)?
  25. 25.The price of a school bag changes from ₹180 to ₹162. By what percent did it come down?
  26. 26.A water tank holds 2980 litres. 15% of the water is used. How many litres are left?
  27. 27.A shop sells 2580 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  28. 28.The price of a school bag changes from ₹2420 to ₹2662. By what percent did it go up?
  29. 29.A water tank holds 2000 litres. 50% of the water is used. How many litres are left?
  30. 30.The price of a school bag changes from ₹3380 to ₹2366. By what percent did it come down?
  31. 31.A water tank holds 3420 litres. 5% of the water is used. How many litres are left?
  32. 32.A town has 4480 people. Its population grows by 15%. How many people live there now?
  33. 33.The price of a bicycle is ₹660. It goes up by 30%. What is the new price (in ₹)?
  34. 34.The price of a school bag changes from ₹320 to ₹400. By what percent did it go up?
  35. 35.A price goes up by 20% and then comes down by 5%. By what percent has it gone up in all? =
  36. 36.The price of a bicycle is ₹320. It goes up by 30%. What is the new price (in ₹)?
  37. 37.The price of a school bag changes from ₹160 to ₹152. By what percent did it come down?
  38. 38.The price of a school bag changes from ₹3380 to ₹1690. By what percent did it come down?
  39. 39.The price of a school bag changes from ₹1280 to ₹1536. By what percent did it go up?
  40. 40.A town has 4280 people. Its population grows by 50%. How many people live there now?

Answer key

  1. 5175
  2. 40
  3. 15
  4. 10
  5. 25
  6. 20
  7. 2277
  8. 2424
  9. 40
  10. 1560
  11. 2952
  12. 3128
  13. 2158
  14. 6664
  15. 576
  16. 850
  17. 1694
  18. 3458
  19. 138
  20. 50
  21. 25
  22. 75
  23. 3952
  24. 2054
  25. 10
  26. 2533
  27. 3354
  28. 10
  29. 1000
  30. 30
  31. 3249
  32. 5152
  33. 858
  34. 25
  35. 14
  36. 416
  37. 5
  38. 50
  39. 20
  40. 6420

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