Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 277 · 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 school bag changes from ₹800 to ₹1120. By what percent did it go up?
2. 2.A water tank holds 3160 litres. 5% of the water is used. How many litres are left?
3. 3.A price goes up by 15% and then goes up by 10% more. By what percent has it gone up in all? =
4. 4.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
5. 5.A shop sells 2460 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
6. 6.A water tank holds 4320 litres. 15% of the water is used. How many litres are left?
7. 7.A price goes up by 15% and then goes up by 20% more. By what percent has it gone up in all? =
8. 8.A water tank holds 1780 litres. 20% of the water is used. How many litres are left?
9. 9.The price of a school bag changes from ₹2760 to ₹1656. By what percent did it come down?
10. 10.A water tank holds 2540 litres. 20% of the water is used. How many litres are left?
11. 11.The price of a school bag changes from ₹1160 to ₹1334. By what percent did it go up?
12. 12.The price of a school bag changes from ₹840 to ₹1008. By what percent did it go up?
13. 13.A price goes up by 30% and then goes up by 30% more. By what percent has it gone up in all? =
14. 14.A shop sells 4380 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
15. 15.The price of a school bag changes from ₹3460 to ₹2595. By what percent did it come down?
16. 16.The price of a bicycle is ₹4420. It goes up by 40%. What is the new price (in ₹)?
17. 17.A town has 2820 people. Its population grows by 5%. How many people live there now?
18. 18.A shop sells 1680 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
19. 19.A water tank holds 880 litres. 40% of the water is used. How many litres are left?
20. 20.A shop sells 1200 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
21. 21.A shop sells 3940 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
22. 22.The price of a bicycle is ₹3880. It goes up by 5%. What is the new price (in ₹)?
23. 23.A town has 1160 people. Its population grows by 25%. How many people live there now?
24. 24.The price of a school bag changes from ₹4120 to ₹3296. By what percent did it come down?
25. 25.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
26. 26.The price of a bicycle is ₹2560. It goes up by 15%. What is the new price (in ₹)?
27. 27.A water tank holds 1460 litres. 5% of the water is used. How many litres are left?
28. 28.The price of a bicycle is ₹2820. It goes up by 50%. What is the new price (in ₹)?
29. 29.The price of a school bag changes from ₹4060 to ₹3654. By what percent did it come down?
30. 30.A water tank holds 3700 litres. 25% of the water is used. How many litres are left?
31. 31.The price of a school bag changes from ₹2760 to ₹3588. By what percent did it go up?
32. 32.A water tank holds 900 litres. 50% of the water is used. How many litres are left?
33. 33.A water tank holds 4640 litres. 15% of the water is used. How many litres are left?
34. 34.A price goes up by 50% and then goes up by 50% more. By what percent has it gone up in all? =
35. 35.The price of a school bag changes from ₹2980 to ₹3874. By what percent did it go up?
36. 36.A water tank holds 1260 litres. 40% of the water is used. How many litres are left?
37. 37.A shop sells 440 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
38. 38.A price goes up by 30% and then goes up by 15% more. By what percent has it gone up in all? =
39. 39.A price goes up by 10% and then goes up by 25% more. By what percent has it gone up in all? =
40. 40.A price comes down by 50% and then comes down by 30% more. By what percent has it come down in all? =

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