Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 315 · 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 ₹840 to ₹672. By what percent did it come down?
2. 2.A water tank holds 1940 litres. 5% of the water is used. How many litres are left?
3. 3.The price of a school bag changes from ₹2160 to ₹2268. By what percent did it go up?
4. 4.The price of a bicycle is ₹3100. It goes up by 30%. What is the new price (in ₹)?
5. 5.A water tank holds 3800 litres. 15% of the water is used. How many litres are left?
6. 6.The price of a school bag changes from ₹1740 to ₹2175. By what percent did it go up?
7. 7.A water tank holds 3020 litres. 15% of the water is used. How many litres are left?
8. 8.A price comes down by 50% and then comes down by 50% more. By what percent has it come down in all? =
9. 9.The price of a school bag changes from ₹120 to ₹138. By what percent did it go up?
10. 10.A shop sells 2480 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
11. 11.The price of a bicycle is ₹4580. It goes up by 50%. What is the new price (in ₹)?
12. 12.A price goes up by 25% and then comes down by 15%. By what percent has it gone up in all? =
13. 13.The price of a school bag changes from ₹4900 to ₹5145. By what percent did it go up?
14. 14.The price of a bicycle is ₹980. It goes up by 40%. What is the new price (in ₹)?
15. 15.A price goes up by 30% and then goes up by 15% more. By what percent has it gone up in all? =
16. 16.The price of a bicycle is ₹2160. It goes up by 25%. What is the new price (in ₹)?
17. 17.A shop sells 3560 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
18. 18.A price comes down by 10% and then comes down by 5% more. By what percent has it come down in all? =
19. 19.A water tank holds 1460 litres. 40% of the water is used. How many litres are left?
20. 20.A price goes up by 15% and then goes up by 50% more. By what percent has it gone up in all? =
21. 21.The price of a bicycle is ₹1380. It goes up by 20%. What is the new price (in ₹)?
22. 22.A town has 780 people. Its population grows by 50%. How many people live there now?
23. 23.A shop sells 80 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
24. 24.A shop sells 3420 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
25. 25.The price of a bicycle is ₹3080. It goes up by 5%. What is the new price (in ₹)?
26. 26.The price of a school bag changes from ₹1520 to ₹1368. By what percent did it come down?
27. 27.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
28. 28.A shop sells 640 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
29. 29.A water tank holds 2960 litres. 30% of the water is used. How many litres are left?
30. 30.The price of a school bag changes from ₹2300 to ₹1725. By what percent did it come down?
31. 31.A price goes up by 5% and then goes up by 40% more. By what percent has it gone up in all? =
32. 32.The price of a bicycle is ₹1960. It goes up by 30%. What is the new price (in ₹)?
33. 33.The price of a school bag changes from ₹1000 to ₹600. By what percent did it come down?
34. 34.The price of a bicycle is ₹4440. It goes up by 25%. What is the new price (in ₹)?
35. 35.The price of a bicycle is ₹1860. It goes up by 5%. What is the new price (in ₹)?
36. 36.A town has 3760 people. Its population grows by 10%. How many people live there now?
37. 37.The price of a school bag changes from ₹720 to ₹1080. By what percent did it go up?
38. 38.The price of a bicycle is ₹2240. It goes up by 10%. What is the new price (in ₹)?
39. 39.A water tank holds 4840 litres. 5% of the water is used. How many litres are left?
40. 40.The price of a bicycle is ₹300. It goes up by 5%. What is the new price (in ₹)?

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