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Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 265 · 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 ₹3760 to ₹3572. By what percent did it come down?
  2. 2.The price of a school bag changes from ₹2140 to ₹2568. By what percent did it go up?
  3. 3.The price of a school bag changes from ₹640 to ₹704. By what percent did it go up?
  4. 4.The price of a school bag changes from ₹1420 to ₹1704. By what percent did it go up?
  5. 5.The price of a bicycle is ₹1500. It goes up by 40%. What is the new price (in ₹)?
  6. 6.A price comes down by 30% and then comes down by 30% more. By what percent has it come down in all? =
  7. 7.A water tank holds 2480 litres. 40% of the water is used. How many litres are left?
  8. 8.A water tank holds 1060 litres. 10% of the water is used. How many litres are left?
  9. 9.The price of a school bag changes from ₹620 to ₹744. By what percent did it go up?
  10. 10.A water tank holds 1060 litres. 5% of the water is used. How many litres are left?
  11. 11.A water tank holds 1480 litres. 10% of the water is used. How many litres are left?
  12. 12.The price of a bicycle is ₹2660. It goes up by 20%. What is the new price (in ₹)?
  13. 13.The price of a school bag changes from ₹2920 to ₹3504. By what percent did it go up?
  14. 14.A water tank holds 3320 litres. 5% of the water is used. How many litres are left?
  15. 15.A price comes down by 30% and then comes down by 40% more. By what percent has it come down in all? =
  16. 16.A water tank holds 3120 litres. 30% of the water is used. How many litres are left?
  17. 17.A water tank holds 300 litres. 10% of the water is used. How many litres are left?
  18. 18.A water tank holds 640 litres. 25% of the water is used. How many litres are left?
  19. 19.A water tank holds 620 litres. 40% of the water is used. How many litres are left?
  20. 20.A shop sells 3400 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
  21. 21.The price of a bicycle is ₹4000. It goes up by 10%. What is the new price (in ₹)?
  22. 22.A water tank holds 2160 litres. 25% of the water is used. How many litres are left?
  23. 23.The price of a bicycle is ₹1540. It goes up by 15%. What is the new price (in ₹)?
  24. 24.The price of a bicycle is ₹3700. It goes up by 30%. What is the new price (in ₹)?
  25. 25.A water tank holds 940 litres. 25% of the water is used. How many litres are left?
  26. 26.The price of a school bag changes from ₹2720 to ₹2856. By what percent did it go up?
  27. 27.The price of a bicycle is ₹320. It goes up by 30%. What is the new price (in ₹)?
  28. 28.The price of a school bag changes from ₹4520 to ₹3616. By what percent did it come down?
  29. 29.The price of a school bag changes from ₹3620 to ₹2715. By what percent did it come down?
  30. 30.A price goes up by 50% and then comes down by 10%. By what percent has it gone up in all? =
  31. 31.A price comes down by 25% and then comes down by 10% more. By what percent has it come down in all? =
  32. 32.The price of a school bag changes from ₹500 to ₹475. By what percent did it come down?
  33. 33.A price goes up by 25% and then goes up by 15% more. By what percent has it gone up in all? =
  34. 34.A water tank holds 1160 litres. 30% of the water is used. How many litres are left?
  35. 35.The price of a school bag changes from ₹380 to ₹342. By what percent did it come down?
  36. 36.The price of a school bag changes from ₹4580 to ₹3206. By what percent did it come down?
  37. 37.The price of a bicycle is ₹60. It goes up by 10%. What is the new price (in ₹)?
  38. 38.The price of a bicycle is ₹2120. It goes up by 30%. What is the new price (in ₹)?
  39. 39.The price of a bicycle is ₹3800. It goes up by 40%. What is the new price (in ₹)?
  40. 40.A water tank holds 3600 litres. 25% of the water is used. How many litres are left?

Answer key

  1. 5
  2. 20
  3. 10
  4. 20
  5. 2100
  6. 51
  7. 1488
  8. 954
  9. 20
  10. 1007
  11. 1332
  12. 3192
  13. 20
  14. 3154
  15. 58
  16. 2184
  17. 270
  18. 480
  19. 372
  20. 4760
  21. 4400
  22. 1620
  23. 1771
  24. 4810
  25. 705
  26. 5
  27. 416
  28. 20
  29. 25
  30. 35
  31. 32.5
  32. 5
  33. 43.75
  34. 812
  35. 10
  36. 30
  37. 66
  38. 2756
  39. 5320
  40. 2700

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