Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 721 · 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 ₹3460 to ₹3633. By what percent did it go up?
2. 2.The price of a school bag changes from ₹800 to ₹1120. By what percent did it go up?
3. 3.The price of a school bag changes from ₹2360 to ₹1888. By what percent did it come down?
4. 4.The price of a school bag changes from ₹2060 to ₹2678. By what percent did it go up?
5. 5.A shop sells 1660 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
6. 6.A shop sells 1480 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
7. 7.The price of a school bag changes from ₹2060 to ₹1854. By what percent did it come down?
8. 8.A price comes down by 30% and then comes down by 5% more. By what percent has it come down in all? =
9. 9.A price comes down by 30% and then comes down by 20% more. By what percent has it come down in all? =
10. 10.The price of a bicycle is ₹3740. It goes up by 5%. What is the new price (in ₹)?
11. 11.The price of a bicycle is ₹4360. It goes up by 5%. What is the new price (in ₹)?
12. 12.A price comes down by 20% and then comes down by 30% more. By what percent has it come down in all? =
13. 13.The price of a school bag changes from ₹440 to ₹484. By what percent did it go up?
14. 14.A water tank holds 3340 litres. 5% of the water is used. How many litres are left?
15. 15.A price comes down by 50% and then comes down by 20% more. By what percent has it come down in all? =
16. 16.A water tank holds 3340 litres. 50% of the water is used. How many litres are left?
17. 17.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
18. 18.A shop sells 2120 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
19. 19.The price of a school bag changes from ₹340 to ₹476. By what percent did it go up?
20. 20.A water tank holds 4160 litres. 20% of the water is used. How many litres are left?
21. 21.A shop sells 3280 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
22. 22.A price goes up by 10% and then goes up by 15% more. By what percent has it gone up in all? =
23. 23.A price comes down by 20% and then comes down by 5% more. By what percent has it come down in all? =
24. 24.A price comes down by 5% and then comes down by 25% more. By what percent has it come down in all? =
25. 25.A price goes up by 10% and then goes up by 20% more. By what percent has it gone up in all? =
26. 26.A price goes up by 20% and then goes up by 10% more. By what percent has it gone up in all? =
27. 27.A water tank holds 1420 litres. 25% of the water is used. How many litres are left?
28. 28.A price comes down by 20% and then comes down by 25% more. By what percent has it come down in all? =
29. 29.A shop sells 1740 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
30. 30.A price comes down by 20% and then comes down by 50% more. By what percent has it come down in all? =
31. 31.A town has 1660 people. Its population grows by 5%. How many people live there now?
32. 32.A price goes up by 40% and then goes up by 40% more. By what percent has it gone up in all? =
33. 33.A price comes down by 5% and then comes down by 20% more. By what percent has it come down in all? =
34. 34.The price of a school bag changes from ₹4500 to ₹6300. By what percent did it go up?
35. 35.A price comes down by 30% and then comes down by 10% more. By what percent has it come down in all? =
36. 36.A shop sells 580 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
37. 37.The price of a bicycle is ₹340. It goes up by 40%. What is the new price (in ₹)?
38. 38.The price of a bicycle is ₹4260. It goes up by 25%. What is the new price (in ₹)?
39. 39.The price of a school bag changes from ₹2540 to ₹2794. By what percent did it go up?
40. 40.A water tank holds 4340 litres. 10% of the water is used. How many litres are left?

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