Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 917 · 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 ₹220. It goes up by 50%. What is the new price (in ₹)?
2. 2.The price of a school bag changes from ₹2000 to ₹2400. By what percent did it go up?
3. 3.A water tank holds 2680 litres. 5% of the water is used. How many litres are left?
4. 4.A water tank holds 4540 litres. 5% of the water is used. How many litres are left?
5. 5.A price goes up by 30% and then goes up by 50% more. By what percent has it gone up in all? =
6. 6.A shop sells 2000 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
7. 7.A town has 2700 people. Its population grows by 20%. How many people live there now?
8. 8.A shop sells 4140 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
9. 9.The price of a bicycle is ₹1140. It goes up by 5%. What is the new price (in ₹)?
10. 10.A water tank holds 520 litres. 15% of the water is used. How many litres are left?
11. 11.A water tank holds 800 litres. 10% of the water is used. How many litres are left?
12. 12.A town has 3040 people. Its population grows by 5%. How many people live there now?
13. 13.A water tank holds 3400 litres. 50% of the water is used. How many litres are left?
14. 14.A town has 1340 people. Its population grows by 5%. How many people live there now?
15. 15.A water tank holds 640 litres. 10% of the water is used. How many litres are left?
16. 16.A price comes down by 15% and then comes down by 15% more. By what percent has it come down in all? =
17. 17.A shop sells 2340 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
18. 18.A price goes up by 5% and then goes up by 5% more. By what percent has it gone up in all? =
19. 19.A water tank holds 4540 litres. 15% of the water is used. How many litres are left?
20. 20.A price goes up by 15% and then goes up by 20% more. By what percent has it gone up in all? =
21. 21.The price of a bicycle is ₹4700. It goes up by 5%. What is the new price (in ₹)?
22. 22.A price comes down by 15% and then comes down by 50% more. By what percent has it come down in all? =
23. 23.The price of a school bag changes from ₹580 to ₹290. By what percent did it come down?
24. 24.A price comes down by 50% and then comes down by 5% more. By what percent has it come down in all? =
25. 25.A price comes down by 20% and then comes down by 25% more. By what percent has it come down in all? =
26. 26.The price of a bicycle is ₹1760. It goes up by 25%. What is the new price (in ₹)?
27. 27.A price goes up by 50% and then goes up by 10% more. By what percent has it gone up in all? =
28. 28.The price of a school bag changes from ₹2940 to ₹3087. By what percent did it go up?
29. 29.A shop sells 3600 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
30. 30.A town has 5000 people. Its population grows by 15%. How many people live there now?
31. 31.A price goes up by 10% and then goes up by 5% more. By what percent has it gone up in all? =
32. 32.A price comes down by 10% and then comes down by 10% more. By what percent has it come down in all? =
33. 33.The price of a bicycle is ₹4260. It goes up by 30%. What is the new price (in ₹)?
34. 34.The price of a bicycle is ₹1880. It goes up by 25%. What is the new price (in ₹)?
35. 35.A price comes down by 20% and then comes down by 15% more. By what percent has it come down in all? =
36. 36.A water tank holds 3180 litres. 10% of the water is used. How many litres are left?
37. 37.The price of a bicycle is ₹4680. It goes up by 5%. What is the new price (in ₹)?
38. 38.The price of a school bag changes from ₹1360 to ₹1088. By what percent did it come down?
39. 39.A shop sells 3820 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
40. 40.The price of a school bag changes from ₹500 to ₹550. By what percent did it go up?

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