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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 515 · 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.A shop sells 3580 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  2. 2.A price goes up by 10% and then goes up by 40% more. By what percent has it gone up in all? =
  3. 3.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
  4. 4.The price of a school bag changes from ₹1280 to ₹1600. By what percent did it go up?
  5. 5.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
  6. 6.A water tank holds 3920 litres. 40% of the water is used. How many litres are left?
  7. 7.The price of a bicycle is ₹2740. It goes up by 30%. What is the new price (in ₹)?
  8. 8.The price of a school bag changes from ₹4980 to ₹6474. By what percent did it go up?
  9. 9.A water tank holds 1260 litres. 5% of the water is used. How many litres are left?
  10. 10.A shop sells 900 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  11. 11.The price of a school bag changes from ₹500 to ₹525. By what percent did it go up?
  12. 12.The price of a bicycle is ₹4460. It goes up by 10%. What is the new price (in ₹)?
  13. 13.The price of a school bag changes from ₹2340 to ₹1989. By what percent did it come down?
  14. 14.A price comes down by 50% and then comes down by 10% more. By what percent has it come down in all? =
  15. 15.A water tank holds 4120 litres. 50% of the water is used. How many litres are left?
  16. 16.The price of a school bag changes from ₹2680 to ₹2412. By what percent did it come down?
  17. 17.A price goes up by 50% and then goes up by 50% more. By what percent has it gone up in all? =
  18. 18.The price of a school bag changes from ₹4120 to ₹2884. By what percent did it come down?
  19. 19.The price of a school bag changes from ₹300 to ₹285. By what percent did it come down?
  20. 20.A price goes up by 50% and then goes up by 5% more. By what percent has it gone up in all? =
  21. 21.The price of a school bag changes from ₹2640 to ₹1584. By what percent did it come down?
  22. 22.A water tank holds 4960 litres. 40% of the water is used. How many litres are left?
  23. 23.A price goes up by 15% and then comes down by 10%. By what percent has it gone up in all? =
  24. 24.A water tank holds 220 litres. 20% of the water is used. How many litres are left?
  25. 25.A price goes up by 10% and then goes up by 25% more. By what percent has it gone up in all? =
  26. 26.The price of a school bag changes from ₹2340 to ₹1404. By what percent did it come down?
  27. 27.A town has 4260 people. Its population grows by 5%. How many people live there now?
  28. 28.The price of a bicycle is ₹1580. It goes up by 40%. What is the new price (in ₹)?
  29. 29.The price of a school bag changes from ₹4860 to ₹3402. By what percent did it come down?
  30. 30.A price goes up by 20% and then goes up by 25% more. By what percent has it gone up in all? =
  31. 31.The price of a school bag changes from ₹2760 to ₹2622. By what percent did it come down?
  32. 32.A water tank holds 3760 litres. 50% of the water is used. How many litres are left?
  33. 33.A water tank holds 2520 litres. 10% of the water is used. How many litres are left?
  34. 34.A water tank holds 4740 litres. 10% of the water is used. How many litres are left?
  35. 35.A town has 440 people. Its population grows by 20%. How many people live there now?
  36. 36.The price of a school bag changes from ₹3280 to ₹3116. By what percent did it come down?
  37. 37.The price of a bicycle is ₹400. It goes up by 5%. What is the new price (in ₹)?
  38. 38.A price goes up by 10% and then comes down by 5%. By what percent has it gone up in all? =
  39. 39.A shop sells 2480 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  40. 40.The price of a school bag changes from ₹1100 to ₹550. By what percent did it come down?

Answer key

  1. 4475
  2. 54
  3. 65
  4. 25
  5. 19.25
  6. 2352
  7. 3562
  8. 30
  9. 1197
  10. 945
  11. 5
  12. 4906
  13. 15
  14. 55
  15. 2060
  16. 10
  17. 125
  18. 30
  19. 5
  20. 57.5
  21. 40
  22. 2976
  23. 3.5
  24. 176
  25. 37.5
  26. 40
  27. 4473
  28. 2212
  29. 30
  30. 50
  31. 5
  32. 1880
  33. 2268
  34. 4266
  35. 528
  36. 5
  37. 420
  38. 4.5
  39. 3720
  40. 50

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