Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 497 · 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 town has 4760 people. Its population grows by 10%. How many people live there now?
2. 2.The price of a bicycle is ₹1200. It goes up by 5%. What is the new price (in ₹)?
3. 3.A price comes down by 30% and then comes down by 40% more. By what percent has it come down in all? =
4. 4.The price of a bicycle is ₹2660. It goes up by 5%. What is the new price (in ₹)?
5. 5.A price goes up by 25% and then goes up by 50% more. By what percent has it gone up in all? =
6. 6.A price comes down by 40% and then comes down by 10% more. By what percent has it come down in all? =
7. 7.The price of a bicycle is ₹100. It goes up by 40%. What is the new price (in ₹)?
8. 8.A water tank holds 980 litres. 30% of the water is used. How many litres are left?
9. 9.The price of a bicycle is ₹1480. It goes up by 25%. What is the new price (in ₹)?
10. 10.A town has 1260 people. Its population grows by 40%. How many people live there now?
11. 11.A water tank holds 4440 litres. 5% of the water is used. How many litres are left?
12. 12.The price of a bicycle is ₹1180. It goes up by 30%. What is the new price (in ₹)?
13. 13.The price of a school bag changes from ₹3140 to ₹2355. By what percent did it come down?
14. 14.The price of a school bag changes from ₹1840 to ₹1748. By what percent did it come down?
15. 15.The price of a bicycle is ₹3340. It goes up by 25%. What is the new price (in ₹)?
16. 16.A town has 1680 people. Its population grows by 5%. How many people live there now?
17. 17.A town has 3120 people. Its population grows by 5%. How many people live there now?
18. 18.The price of a bicycle is ₹4420. It goes up by 30%. What is the new price (in ₹)?
19. 19.A water tank holds 1600 litres. 40% of the water is used. How many litres are left?
20. 20.A price goes up by 50% and then comes down by 10%. By what percent has it gone up in all? =
21. 21.A water tank holds 3400 litres. 25% of the water is used. How many litres are left?
22. 22.A town has 1980 people. Its population grows by 25%. How many people live there now?
23. 23.The price of a school bag changes from ₹4620 to ₹4389. By what percent did it come down?
24. 24.A water tank holds 780 litres. 10% of the water is used. How many litres are left?
25. 25.A price goes up by 5% and then goes up by 10% more. By what percent has it gone up in all? =
26. 26.A price goes up by 10% and then goes up by 15% more. By what percent has it gone up in all? =
27. 27.The price of a bicycle is ₹2980. It goes up by 50%. What is the new price (in ₹)?
28. 28.A town has 1000 people. Its population grows by 15%. How many people live there now?
29. 29.A shop sells 5000 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
30. 30.The price of a bicycle is ₹920. It goes up by 25%. What is the new price (in ₹)?
31. 31.A water tank holds 4760 litres. 25% of the water is used. How many litres are left?
32. 32.The price of a school bag changes from ₹60 to ₹51. By what percent did it come down?
33. 33.A price goes up by 10% and then comes down by 5%. By what percent has it gone up in all? =
34. 34.The price of a school bag changes from ₹4520 to ₹4972. By what percent did it go up?
35. 35.A price goes up by 50% and then comes down by 20%. By what percent has it gone up in all? =
36. 36.A water tank holds 2800 litres. 5% of the water is used. How many litres are left?
37. 37.A water tank holds 1760 litres. 10% of the water is used. How many litres are left?
38. 38.The price of a school bag changes from ₹1140 to ₹1254. By what percent did it go up?
39. 39.The price of a school bag changes from ₹200 to ₹220. By what percent did it go up?
40. 40.The price of a bicycle is ₹2740. It goes up by 5%. What is the new price (in ₹)?

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