Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 662 · 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.The price of a bicycle is ₹1140. It goes up by 15%. What is the new price (in ₹)?
2. 2.A shop sells 3880 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
3. 3.The price of a school bag changes from ₹3220 to ₹3703. By what percent did it go up?
4. 4.A price comes down by 50% and then comes down by 40% more. By what percent has it come down in all? =
5. 5.The price of a bicycle is ₹900. It goes up by 40%. What is the new price (in ₹)?
6. 6.The price of a bicycle is ₹1780. It goes up by 25%. What is the new price (in ₹)?
7. 7.A water tank holds 580 litres. 50% of the water is used. How many litres are left?
8. 8.A shop sells 520 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
9. 9.The price of a school bag changes from ₹2320 to ₹1856. By what percent did it come down?
10. 10.A water tank holds 640 litres. 20% of the water is used. How many litres are left?
11. 11.The price of a school bag changes from ₹4440 to ₹3774. By what percent did it come down?
12. 12.The price of a school bag changes from ₹3960 to ₹2970. By what percent did it come down?
13. 13.A water tank holds 460 litres. 25% of the water is used. How many litres are left?
14. 14.The price of a bicycle is ₹2880. It goes up by 25%. What is the new price (in ₹)?
15. 15.A shop sells 2740 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
16. 16.A price goes up by 10% and then goes up by 5% more. By what percent has it gone up in all? =
17. 17.A town has 500 people. Its population grows by 25%. How many people live there now?
18. 18.A water tank holds 3060 litres. 30% of the water is used. How many litres are left?
19. 19.A water tank holds 360 litres. 10% of the water is used. How many litres are left?
20. 20.A town has 4540 people. Its population grows by 10%. How many people live there now?
21. 21.A water tank holds 460 litres. 5% of the water is used. How many litres are left?
22. 22.The price of a bicycle is ₹60. It goes up by 10%. What is the new price (in ₹)?
23. 23.A shop sells 1540 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
24. 24.The price of a bicycle is ₹2100. It goes up by 20%. What is the new price (in ₹)?
25. 25.The price of a school bag changes from ₹720 to ₹684. By what percent did it come down?
26. 26.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
27. 27.A town has 4680 people. Its population grows by 5%. How many people live there now?
28. 28.A town has 2260 people. Its population grows by 10%. How many people live there now?
29. 29.A price comes down by 30% and then comes down by 15% more. By what percent has it come down in all? =
30. 30.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
31. 31.A water tank holds 3140 litres. 20% of the water is used. How many litres are left?
32. 32.The price of a school bag changes from ₹3080 to ₹2310. By what percent did it come down?
33. 33.A water tank holds 4360 litres. 40% of the water is used. How many litres are left?
34. 34.A price goes up by 50% and then goes up by 40% more. By what percent has it gone up in all? =
35. 35.A water tank holds 3940 litres. 10% of the water is used. How many litres are left?
36. 36.A water tank holds 840 litres. 10% of the water is used. How many litres are left?
37. 37.A water tank holds 2420 litres. 30% of the water is used. How many litres are left?
38. 38.A water tank holds 2040 litres. 20% of the water is used. How many litres are left?
39. 39.A price comes down by 5% and then comes down by 50% more. By what percent has it come down in all? =
40. 40.The price of a bicycle is ₹3120. It goes up by 5%. What is the new price (in ₹)?

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