Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 667 · 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 price goes up by 40% and then goes up by 15% more. By what percent has it gone up in all? =
2. 2.A price goes up by 40% and then goes up by 10% more. By what percent has it gone up in all? =
3. 3.The price of a school bag changes from ₹920 to ₹782. By what percent did it come down?
4. 4.The price of a bicycle is ₹1720. It goes up by 15%. What is the new price (in ₹)?
5. 5.The price of a bicycle is ₹1100. It goes up by 40%. What is the new price (in ₹)?
6. 6.A town has 3340 people. Its population grows by 10%. How many people live there now?
7. 7.A water tank holds 320 litres. 40% of the water is used. How many litres are left?
8. 8.A price comes down by 50% and then comes down by 5% more. By what percent has it come down in all? =
9. 9.A water tank holds 4500 litres. 10% of the water is used. How many litres are left?
10. 10.The price of a bicycle is ₹1580. It goes up by 50%. What is the new price (in ₹)?
11. 11.A price goes up by 50% and then comes down by 20%. By what percent has it gone up in all? =
12. 12.A water tank holds 2120 litres. 5% of the water is used. How many litres are left?
13. 13.A shop sells 2360 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
14. 14.A shop sells 1140 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
15. 15.The price of a school bag changes from ₹1700 to ₹1360. By what percent did it come down?
16. 16.The price of a bicycle is ₹620. It goes up by 10%. What is the new price (in ₹)?
17. 17.A water tank holds 660 litres. 5% of the water is used. How many litres are left?
18. 18.The price of a bicycle is ₹1360. It goes up by 25%. What is the new price (in ₹)?
19. 19.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
20. 20.The price of a bicycle is ₹880. It goes up by 40%. What is the new price (in ₹)?
21. 21.The price of a bicycle is ₹1540. It goes up by 10%. What is the new price (in ₹)?
22. 22.The price of a school bag changes from ₹1940 to ₹2522. By what percent did it go up?
23. 23.A shop sells 500 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
24. 24.A town has 1440 people. Its population grows by 40%. How many people live there now?
25. 25.A price goes up by 20% and then comes down by 5%. By what percent has it gone up in all? =
26. 26.The price of a school bag changes from ₹2560 to ₹1280. By what percent did it come down?
27. 27.The price of a bicycle is ₹300. It goes up by 25%. What is the new price (in ₹)?
28. 28.A water tank holds 2880 litres. 30% of the water is used. How many litres are left?
29. 29.The price of a school bag changes from ₹4160 to ₹2496. By what percent did it come down?
30. 30.A price goes up by 5% and then goes up by 5% more. By what percent has it gone up in all? =
31. 31.The price of a school bag changes from ₹3660 to ₹3111. By what percent did it come down?
32. 32.A water tank holds 3260 litres. 30% of the water is used. How many litres are left?
33. 33.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
34. 34.The price of a bicycle is ₹3060. It goes up by 5%. What is the new price (in ₹)?
35. 35.A town has 4220 people. Its population grows by 25%. How many people live there now?
36. 36.A water tank holds 720 litres. 5% of the water is used. How many litres are left?
37. 37.A water tank holds 2720 litres. 40% of the water is used. How many litres are left?
38. 38.A water tank holds 1520 litres. 20% of the water is used. How many litres are left?
39. 39.The price of a school bag changes from ₹3940 to ₹2758. By what percent did it come down?
40. 40.A shop sells 2520 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?

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