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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 291 · 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 ₹2960 to ₹2812. By what percent did it come down?
  2. 2.The price of a school bag changes from ₹1320 to ₹1452. By what percent did it go up?
  3. 3.A price goes up by 10% and then comes down by 5%. By what percent has it gone up in all? =
  4. 4.The price of a bicycle is ₹740. It goes up by 25%. What is the new price (in ₹)?
  5. 5.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
  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.The price of a bicycle is ₹1120. It goes up by 15%. What is the new price (in ₹)?
  8. 8.The price of a school bag changes from ₹1600 to ₹1440. By what percent did it come down?
  9. 9.A water tank holds 240 litres. 15% of the water is used. How many litres are left?
  10. 10.A water tank holds 2120 litres. 20% of the water is used. How many litres are left?
  11. 11.A town has 1800 people. Its population grows by 30%. How many people live there now?
  12. 12.A water tank holds 2160 litres. 25% of the water is used. How many litres are left?
  13. 13.A shop sells 1640 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  14. 14.The price of a bicycle is ₹4040. It goes up by 5%. What is the new price (in ₹)?
  15. 15.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
  16. 16.A water tank holds 1160 litres. 40% of the water is used. How many litres are left?
  17. 17.A water tank holds 1840 litres. 15% of the water is used. How many litres are left?
  18. 18.A shop sells 2780 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  19. 19.The price of a school bag changes from ₹3500 to ₹3675. By what percent did it go up?
  20. 20.A water tank holds 3000 litres. 20% of the water is used. How many litres are left?
  21. 21.A water tank holds 460 litres. 40% of the water is used. How many litres are left?
  22. 22.A water tank holds 100 litres. 30% of the water is used. How many litres are left?
  23. 23.The price of a bicycle is ₹4520. It goes up by 15%. What is the new price (in ₹)?
  24. 24.A water tank holds 3240 litres. 25% of the water is used. How many litres are left?
  25. 25.A price goes up by 50% and then goes up by 15% more. By what percent has it gone up in all? =
  26. 26.The price of a bicycle is ₹700. It goes up by 5%. What is the new price (in ₹)?
  27. 27.The price of a bicycle is ₹1240. It goes up by 50%. What is the new price (in ₹)?
  28. 28.A water tank holds 720 litres. 20% of the water is used. How many litres are left?
  29. 29.The price of a school bag changes from ₹4420 to ₹3978. By what percent did it come down?
  30. 30.A price goes up by 25% and then comes down by 10%. By what percent has it gone up in all? =
  31. 31.The price of a school bag changes from ₹3320 to ₹2324. By what percent did it come down?
  32. 32.The price of a school bag changes from ₹560 to ₹336. By what percent did it come down?
  33. 33.A water tank holds 3240 litres. 15% of the water is used. How many litres are left?
  34. 34.A water tank holds 3300 litres. 15% of the water is used. How many litres are left?
  35. 35.The price of a school bag changes from ₹2160 to ₹2268. By what percent did it go up?
  36. 36.A water tank holds 4260 litres. 10% of the water is used. How many litres are left?
  37. 37.A shop sells 2240 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  38. 38.The price of a bicycle is ₹1080. It goes up by 5%. What is the new price (in ₹)?
  39. 39.The price of a bicycle is ₹2520. It goes up by 20%. What is the new price (in ₹)?
  40. 40.A water tank holds 2580 litres. 15% of the water is used. How many litres are left?

Answer key

  1. 5
  2. 10
  3. 4.5
  4. 925
  5. 65
  6. 110
  7. 1288
  8. 10
  9. 204
  10. 1696
  11. 2340
  12. 1620
  13. 2296
  14. 4242
  15. 32.25
  16. 696
  17. 1564
  18. 2919
  19. 5
  20. 2400
  21. 276
  22. 70
  23. 5198
  24. 2430
  25. 72.5
  26. 735
  27. 1860
  28. 576
  29. 10
  30. 12.5
  31. 30
  32. 40
  33. 2754
  34. 2805
  35. 5
  36. 3834
  37. 2464
  38. 1134
  39. 3024
  40. 2193

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