Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 191 · 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 ₹600. It goes up by 5%. What is the new price (in ₹)?
2. 2.A water tank holds 2980 litres. 30% of the water is used. How many litres are left?
3. 3.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
4. 4.A price goes up by 10% and then goes up by 15% more. By what percent has it gone up in all? =
5. 5.A water tank holds 4060 litres. 50% of the water is used. How many litres are left?
6. 6.A town has 4040 people. Its population grows by 10%. How many people live there now?
7. 7.A town has 3180 people. Its population grows by 50%. How many people live there now?
8. 8.The price of a school bag changes from ₹3480 to ₹2436. By what percent did it come down?
9. 9.A town has 3700 people. Its population grows by 40%. How many people live there now?
10. 10.The price of a school bag changes from ₹4160 to ₹3952. By what percent did it come down?
11. 11.A shop sells 1700 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
12. 12.A price comes down by 50% and then comes down by 5% more. By what percent has it come down in all? =
13. 13.The price of a school bag changes from ₹1160 to ₹1450. By what percent did it go up?
14. 14.The price of a bicycle is ₹300. It goes up by 15%. What is the new price (in ₹)?
15. 15.A price comes down by 25% and then comes down by 20% more. By what percent has it come down in all? =
16. 16.The price of a bicycle is ₹2540. It goes up by 25%. What is the new price (in ₹)?
17. 17.The price of a school bag changes from ₹1780 to ₹1958. By what percent did it go up?
18. 18.A shop sells 4720 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
19. 19.A town has 2420 people. Its population grows by 15%. How many people live there now?
20. 20.A price comes down by 20% and then comes down by 10% more. By what percent has it come down in all? =
21. 21.The price of a school bag changes from ₹3260 to ₹4564. By what percent did it go up?
22. 22.A shop sells 1820 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
23. 23.The price of a school bag changes from ₹4740 to ₹4266. By what percent did it come down?
24. 24.The price of a bicycle is ₹4540. It goes up by 10%. What is the new price (in ₹)?
25. 25.A water tank holds 2400 litres. 50% of the water is used. How many litres are left?
26. 26.A price comes down by 20% and then comes down by 5% more. By what percent has it come down in all? =
27. 27.A shop sells 2580 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
28. 28.A price goes up by 20% and then goes up by 20% more. By what percent has it gone up in all? =
29. 29.A price goes up by 10% and then goes up by 30% more. By what percent has it gone up in all? =
30. 30.The price of a school bag changes from ₹320 to ₹304. By what percent did it come down?
31. 31.A water tank holds 4420 litres. 25% of the water is used. How many litres are left?
32. 32.The price of a school bag changes from ₹3400 to ₹3230. By what percent did it come down?
33. 33.The price of a school bag changes from ₹260 to ₹156. By what percent did it come down?
34. 34.The price of a bicycle is ₹440. It goes up by 10%. What is the new price (in ₹)?
35. 35.A town has 620 people. Its population grows by 5%. How many people live there now?
36. 36.A price goes up by 5% and then goes up by 20% more. By what percent has it gone up in all? =
37. 37.A price comes down by 40% and then comes down by 50% more. By what percent has it come down in all? =
38. 38.The price of a bicycle is ₹1980. It goes up by 50%. What is the new price (in ₹)?
39. 39.A shop sells 240 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
40. 40.The price of a bicycle is ₹4440. It goes up by 50%. What is the new price (in ₹)?

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