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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 405 · 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 ₹4580. It goes up by 25%. What is the new price (in ₹)?
  2. 2.A price comes down by 40% and then comes down by 5% more. By what percent has it come down in all? =
  3. 3.The price of a school bag changes from ₹4520 to ₹4972. By what percent did it go up?
  4. 4.The price of a school bag changes from ₹4180 to ₹4598. By what percent did it go up?
  5. 5.The price of a school bag changes from ₹4900 to ₹6125. By what percent did it go up?
  6. 6.A shop sells 260 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  7. 7.A water tank holds 4800 litres. 25% of the water is used. How many litres are left?
  8. 8.A shop sells 4640 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  9. 9.A town has 1940 people. Its population grows by 15%. How many people live there now?
  10. 10.The price of a school bag changes from ₹700 to ₹980. By what percent did it go up?
  11. 11.A water tank holds 1220 litres. 25% of the water is used. How many litres are left?
  12. 12.A price goes up by 30% and then goes up by 20% more. By what percent has it gone up in all? =
  13. 13.The price of a school bag changes from ₹1420 to ₹1278. By what percent did it come down?
  14. 14.A town has 140 people. Its population grows by 5%. How many people live there now?
  15. 15.A water tank holds 3180 litres. 25% of the water is used. How many litres are left?
  16. 16.A town has 660 people. Its population grows by 25%. How many people live there now?
  17. 17.The price of a school bag changes from ₹3140 to ₹2826. By what percent did it come down?
  18. 18.A town has 1460 people. Its population grows by 30%. How many people live there now?
  19. 19.A town has 2960 people. Its population grows by 5%. How many people live there now?
  20. 20.The price of a bicycle is ₹1960. It goes up by 10%. What is the new price (in ₹)?
  21. 21.A water tank holds 700 litres. 40% of the water is used. How many litres are left?
  22. 22.The price of a school bag changes from ₹1680 to ₹1512. By what percent did it come down?
  23. 23.A water tank holds 140 litres. 15% of the water is used. How many litres are left?
  24. 24.The price of a school bag changes from ₹4700 to ₹3525. By what percent did it come down?
  25. 25.The price of a school bag changes from ₹1160 to ₹1624. By what percent did it go up?
  26. 26.A town has 1260 people. Its population grows by 15%. How many people live there now?
  27. 27.The price of a school bag changes from ₹1660 to ₹996. By what percent did it come down?
  28. 28.A price comes down by 25% and then comes down by 5% more. By what percent has it come down in all? =
  29. 29.A shop sells 2360 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
  30. 30.A shop sells 3980 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
  31. 31.The price of a school bag changes from ₹1320 to ₹1716. By what percent did it go up?
  32. 32.The price of a bicycle is ₹220. It goes up by 5%. What is the new price (in ₹)?
  33. 33.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
  34. 34.The price of a school bag changes from ₹3960 to ₹5544. By what percent did it go up?
  35. 35.A water tank holds 2420 litres. 50% of the water is used. How many litres are left?
  36. 36.A price goes up by 40% and then comes down by 5%. By what percent has it gone up in all? =
  37. 37.A water tank holds 4920 litres. 25% of the water is used. How many litres are left?
  38. 38.A water tank holds 1360 litres. 25% of the water is used. How many litres are left?
  39. 39.A town has 2800 people. Its population grows by 30%. How many people live there now?
  40. 40.The price of a school bag changes from ₹860 to ₹903. By what percent did it go up?

Answer key

  1. 5725
  2. 43
  3. 10
  4. 10
  5. 25
  6. 390
  7. 3600
  8. 5800
  9. 2231
  10. 40
  11. 915
  12. 56
  13. 10
  14. 147
  15. 2385
  16. 825
  17. 10
  18. 1898
  19. 3108
  20. 2156
  21. 420
  22. 10
  23. 119
  24. 25
  25. 40
  26. 1449
  27. 40
  28. 28.75
  29. 2478
  30. 4378
  31. 30
  32. 231
  33. 32.25
  34. 40
  35. 1210
  36. 33
  37. 3690
  38. 1020
  39. 3640
  40. 5

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