Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 854 · 40 questions

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.

1. 1.A shop sells 2560 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
2. 2.The price of a school bag changes from ₹3020 to ₹3926. By what percent did it go up?
3. 3.A price comes down by 10% and then comes down by 25% more. By what percent has it come down in all? =
4. 4.The price of a bicycle is ₹3060. It goes up by 10%. What is the new price (in ₹)?
5. 5.The price of a school bag changes from ₹80 to ₹60. By what percent did it come down?
6. 6.A water tank holds 320 litres. 5% of the water is used. How many litres are left?
7. 7.A water tank holds 4340 litres. 40% of the water is used. How many litres are left?
8. 8.The price of a bicycle is ₹180. It goes up by 25%. What is the new price (in ₹)?
9. 9.A town has 4940 people. Its population grows by 50%. How many people live there now?
10. 10.A water tank holds 1520 litres. 20% of the water is used. How many litres are left?
11. 11.A price comes down by 5% and then comes down by 25% more. By what percent has it come down in all? =
12. 12.The price of a bicycle is ₹3500. It goes up by 10%. What is the new price (in ₹)?
13. 13.A price goes up by 30% and then goes up by 40% more. By what percent has it gone up in all? =
14. 14.A price goes up by 25% and then goes up by 20% more. By what percent has it gone up in all? =
15. 15.A town has 3560 people. Its population grows by 30%. How many people live there now?
16. 16.A water tank holds 940 litres. 5% of the water is used. How many litres are left?
17. 17.A town has 2860 people. Its population grows by 20%. How many people live there now?
18. 18.A price goes up by 25% and then goes up by 10% more. By what percent has it gone up in all? =
19. 19.The price of a school bag changes from ₹4100 to ₹5125. By what percent did it go up?
20. 20.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
21. 21.A price comes down by 40% and then comes down by 20% more. By what percent has it come down in all? =
22. 22.A water tank holds 1960 litres. 20% of the water is used. How many litres are left?
23. 23.A shop sells 1720 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
24. 24.A water tank holds 860 litres. 15% of the water is used. How many litres are left?
25. 25.The price of a school bag changes from ₹2800 to ₹2100. By what percent did it come down?
26. 26.A water tank holds 1020 litres. 10% of the water is used. How many litres are left?
27. 27.A price goes up by 30% and then goes up by 20% more. By what percent has it gone up in all? =
28. 28.A price comes down by 40% and then comes down by 15% more. By what percent has it come down in all? =
29. 29.A town has 2600 people. Its population grows by 50%. How many people live there now?
30. 30.A town has 1980 people. Its population grows by 5%. How many people live there now?
31. 31.A price goes up by 10% and then goes up by 15% more. By what percent has it gone up in all? =
32. 32.A shop sells 4840 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
33. 33.The price of a school bag changes from ₹2740 to ₹3836. By what percent did it go up?
34. 34.A water tank holds 3520 litres. 5% of the water is used. How many litres are left?
35. 35.A town has 1940 people. Its population grows by 5%. How many people live there now?
36. 36.The price of a school bag changes from ₹4960 to ₹3720. By what percent did it come down?
37. 37.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =
38. 38.A water tank holds 4060 litres. 15% of the water is used. How many litres are left?
39. 39.A shop sells 620 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
40. 40.A town has 3800 people. Its population grows by 20%. How many people live there now?

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