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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 891 · 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 ₹220 to ₹242. By what percent did it go up?
  2. 2.The price of a school bag changes from ₹4440 to ₹3996. By what percent did it come down?
  3. 3.A shop sells 1480 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  4. 4.A price comes down by 50% and then comes down by 30% more. By what percent has it come down in all? =
  5. 5.The price of a school bag changes from ₹3700 to ₹5180. By what percent did it go up?
  6. 6.A town has 4100 people. Its population grows by 50%. How many people live there now?
  7. 7.A town has 4860 people. Its population grows by 15%. How many people live there now?
  8. 8.The price of a school bag changes from ₹1520 to ₹2128. By what percent did it go up?
  9. 9.The price of a school bag changes from ₹1320 to ₹1188. By what percent did it come down?
  10. 10.A water tank holds 3960 litres. 15% of the water is used. How many litres are left?
  11. 11.The price of a bicycle is ₹2760. It goes up by 20%. What is the new price (in ₹)?
  12. 12.A shop sells 600 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  13. 13.The price of a bicycle is ₹5000. It goes up by 30%. What is the new price (in ₹)?
  14. 14.The price of a school bag changes from ₹1420 to ₹1704. By what percent did it go up?
  15. 15.A water tank holds 1940 litres. 50% of the water is used. How many litres are left?
  16. 16.The price of a school bag changes from ₹900 to ₹1350. By what percent did it go up?
  17. 17.A shop sells 4820 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  18. 18.A price goes up by 10% and then goes up by 15% more. By what percent has it gone up in all? =
  19. 19.A water tank holds 2860 litres. 10% of the water is used. How many litres are left?
  20. 20.A water tank holds 3440 litres. 25% of the water is used. How many litres are left?
  21. 21.A price comes down by 50% and then comes down by 40% more. By what percent has it come down in all? =
  22. 22.A water tank holds 3760 litres. 40% of the water is used. How many litres are left?
  23. 23.The price of a school bag changes from ₹3760 to ₹4888. By what percent did it go up?
  24. 24.A shop sells 1040 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  25. 25.The price of a school bag changes from ₹3820 to ₹4966. By what percent did it go up?
  26. 26.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
  27. 27.The price of a school bag changes from ₹4220 to ₹4009. By what percent did it come down?
  28. 28.A shop sells 4560 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  29. 29.A water tank holds 2560 litres. 20% of the water is used. How many litres are left?
  30. 30.A water tank holds 4840 litres. 20% of the water is used. How many litres are left?
  31. 31.The price of a bicycle is ₹1420. It goes up by 50%. What is the new price (in ₹)?
  32. 32.A price goes up by 50% and then goes up by 15% more. By what percent has it gone up in all? =
  33. 33.A price goes up by 30% and then comes down by 10%. By what percent has it gone up in all? =
  34. 34.The price of a school bag changes from ₹1300 to ₹650. By what percent did it come down?
  35. 35.A water tank holds 1900 litres. 25% of the water is used. How many litres are left?
  36. 36.A town has 2680 people. Its population grows by 50%. How many people live there now?
  37. 37.The price of a school bag changes from ₹640 to ₹768. By what percent did it go up?
  38. 38.The price of a school bag changes from ₹1640 to ₹1558. By what percent did it come down?
  39. 39.A water tank holds 400 litres. 15% of the water is used. How many litres are left?
  40. 40.The price of a school bag changes from ₹3140 to ₹4396. By what percent did it go up?

Answer key

  1. 10
  2. 10
  3. 1554
  4. 65
  5. 40
  6. 6150
  7. 5589
  8. 40
  9. 10
  10. 3366
  11. 3312
  12. 780
  13. 6500
  14. 20
  15. 970
  16. 50
  17. 5061
  18. 26.5
  19. 2574
  20. 2580
  21. 70
  22. 2256
  23. 30
  24. 1456
  25. 30
  26. 36.25
  27. 5
  28. 4788
  29. 2048
  30. 3872
  31. 2130
  32. 72.5
  33. 17
  34. 50
  35. 1425
  36. 4020
  37. 20
  38. 5
  39. 340
  40. 40

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