Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 319 · 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 ₹4500. It goes up by 15%. What is the new price (in ₹)?
2. 2.The price of a bicycle is ₹2220. It goes up by 50%. What is the new price (in ₹)?
3. 3.The price of a school bag changes from ₹3860 to ₹1930. By what percent did it come down?
4. 4.A town has 1440 people. Its population grows by 10%. How many people live there now?
5. 5.A price goes up by 50% and then goes up by 20% more. By what percent has it gone up in all? =
6. 6.The price of a bicycle is ₹1340. It goes up by 40%. What is the new price (in ₹)?
7. 7.A water tank holds 3020 litres. 5% of the water is used. How many litres are left?
8. 8.A water tank holds 240 litres. 25% of the water is used. How many litres are left?
9. 9.A water tank holds 1660 litres. 25% of the water is used. How many litres are left?
10. 10.A price comes down by 5% and then comes down by 20% more. By what percent has it come down in all? =
11. 11.A water tank holds 2320 litres. 25% of the water is used. How many litres are left?
12. 12.A price comes down by 20% and then comes down by 25% more. By what percent has it come down in all? =
13. 13.A water tank holds 1820 litres. 10% of the water is used. How many litres are left?
14. 14.A price goes up by 25% and then goes up by 50% more. By what percent has it gone up in all? =
15. 15.A water tank holds 3460 litres. 5% of the water is used. How many litres are left?
16. 16.The price of a bicycle is ₹3320. It goes up by 30%. What is the new price (in ₹)?
17. 17.The price of a school bag changes from ₹260 to ₹325. By what percent did it go up?
18. 18.A shop sells 3680 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
19. 19.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
20. 20.A price goes up by 10% and then goes up by 5% more. By what percent has it gone up in all? =
21. 21.A price goes up by 10% and then comes down by 5%. By what percent has it gone up in all? =
22. 22.A price goes up by 30% and then comes down by 10%. By what percent has it gone up in all? =
23. 23.A water tank holds 900 litres. 50% of the water is used. How many litres are left?
24. 24.The price of a bicycle is ₹1340. It goes up by 25%. What is the new price (in ₹)?
25. 25.A water tank holds 4140 litres. 40% of the water is used. How many litres are left?
26. 26.A water tank holds 920 litres. 25% of the water is used. How many litres are left?
27. 27.A water tank holds 2460 litres. 30% of the water is used. How many litres are left?
28. 28.The price of a bicycle is ₹3680. It goes up by 40%. What is the new price (in ₹)?
29. 29.The price of a school bag changes from ₹1800 to ₹1710. By what percent did it come down?
30. 30.A price goes up by 5% and then goes up by 50% more. By what percent has it gone up in all? =
31. 31.A town has 2460 people. Its population grows by 30%. How many people live there now?
32. 32.A shop sells 800 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
33. 33.A price comes down by 20% and then comes down by 15% more. By what percent has it come down in all? =
34. 34.The price of a bicycle is ₹460. It goes up by 5%. What is the new price (in ₹)?
35. 35.A shop sells 4040 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
36. 36.A water tank holds 4820 litres. 10% of the water is used. How many litres are left?
37. 37.A water tank holds 4160 litres. 15% of the water is used. How many litres are left?
38. 38.A water tank holds 2880 litres. 20% of the water is used. How many litres are left?
39. 39.A water tank holds 520 litres. 10% of the water is used. How many litres are left?
40. 40.A price comes down by 40% and then comes down by 50% more. By what percent has it come down in all? =

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