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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 985 · 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 ₹2120. It goes up by 5%. What is the new price (in ₹)?
  2. 2.A shop sells 860 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  3. 3.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
  4. 4.A water tank holds 740 litres. 15% of the water is used. How many litres are left?
  5. 5.The price of a school bag changes from ₹100 to ₹60. By what percent did it come down?
  6. 6.A price comes down by 50% and then comes down by 10% more. By what percent has it come down in all? =
  7. 7.A price comes down by 30% and then comes down by 10% more. By what percent has it come down in all? =
  8. 8.A water tank holds 4560 litres. 15% of the water is used. How many litres are left?
  9. 9.A water tank holds 3180 litres. 5% of the water is used. How many litres are left?
  10. 10.A price comes down by 15% and then comes down by 5% more. By what percent has it come down in all? =
  11. 11.The price of a school bag changes from ₹440 to ₹418. By what percent did it come down?
  12. 12.A water tank holds 980 litres. 5% of the water is used. How many litres are left?
  13. 13.A price goes up by 20% and then goes up by 40% more. By what percent has it gone up in all? =
  14. 14.A price comes down by 5% and then comes down by 40% more. By what percent has it come down in all? =
  15. 15.A price comes down by 25% and then comes down by 10% more. By what percent has it come down in all? =
  16. 16.A water tank holds 260 litres. 25% of the water is used. How many litres are left?
  17. 17.A shop sells 1980 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  18. 18.The price of a school bag changes from ₹340 to ₹442. By what percent did it go up?
  19. 19.A town has 1060 people. Its population grows by 15%. How many people live there now?
  20. 20.The price of a bicycle is ₹3380. It goes up by 10%. What is the new price (in ₹)?
  21. 21.A price goes up by 30% and then goes up by 5% more. By what percent has it gone up in all? =
  22. 22.A town has 200 people. Its population grows by 50%. How many people live there now?
  23. 23.A price goes up by 25% and then goes up by 5% more. By what percent has it gone up in all? =
  24. 24.The price of a school bag changes from ₹4260 to ₹5964. By what percent did it go up?
  25. 25.The price of a school bag changes from ₹1160 to ₹696. By what percent did it come down?
  26. 26.A price comes down by 30% and then comes down by 50% more. By what percent has it come down in all? =
  27. 27.A water tank holds 3600 litres. 20% of the water is used. How many litres are left?
  28. 28.The price of a school bag changes from ₹2840 to ₹2982. By what percent did it go up?
  29. 29.A water tank holds 4960 litres. 10% of the water is used. How many litres are left?
  30. 30.A town has 2200 people. Its population grows by 30%. How many people live there now?
  31. 31.The price of a school bag changes from ₹2920 to ₹4088. By what percent did it go up?
  32. 32.The price of a school bag changes from ₹3160 to ₹2212. By what percent did it come down?
  33. 33.The price of a school bag changes from ₹900 to ₹855. By what percent did it come down?
  34. 34.A water tank holds 3200 litres. 50% of the water is used. How many litres are left?
  35. 35.The price of a school bag changes from ₹2240 to ₹2912. By what percent did it go up?
  36. 36.A price comes down by 20% and then comes down by 5% more. By what percent has it come down in all? =
  37. 37.A water tank holds 940 litres. 15% of the water is used. How many litres are left?
  38. 38.The price of a bicycle is ₹2840. It goes up by 20%. What is the new price (in ₹)?
  39. 39.A water tank holds 3280 litres. 50% of the water is used. How many litres are left?
  40. 40.The price of a school bag changes from ₹2440 to ₹2074. By what percent did it come down?

Answer key

  1. 2226
  2. 946
  3. 36.25
  4. 629
  5. 40
  6. 55
  7. 37
  8. 3876
  9. 3021
  10. 19.25
  11. 5
  12. 931
  13. 68
  14. 43
  15. 32.5
  16. 195
  17. 2772
  18. 30
  19. 1219
  20. 3718
  21. 36.5
  22. 300
  23. 31.25
  24. 40
  25. 40
  26. 65
  27. 2880
  28. 5
  29. 4464
  30. 2860
  31. 40
  32. 30
  33. 5
  34. 1600
  35. 30
  36. 24
  37. 799
  38. 3408
  39. 1640
  40. 15

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