Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 225 · 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 ₹780. It goes up by 20%. What is the new price (in ₹)?
2. 2.A price comes down by 40% and then comes down by 40% more. By what percent has it come down in all? =
3. 3.A shop sells 2220 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
4. 4.The price of a bicycle is ₹3060. It goes up by 5%. What is the new price (in ₹)?
5. 5.The price of a school bag changes from ₹2180 to ₹1090. By what percent did it come down?
6. 6.A shop sells 4060 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
7. 7.A town has 2140 people. Its population grows by 15%. How many people live there now?
8. 8.The price of a bicycle is ₹2460. It goes up by 20%. What is the new price (in ₹)?
9. 9.The price of a bicycle is ₹540. It goes up by 5%. What is the new price (in ₹)?
10. 10.A price comes down by 25% and then comes down by 25% more. By what percent has it come down in all? =
11. 11.A water tank holds 3780 litres. 5% of the water is used. How many litres are left?
12. 12.A town has 1640 people. Its population grows by 25%. How many people live there now?
13. 13.A water tank holds 1740 litres. 10% of the water is used. How many litres are left?
14. 14.The price of a school bag changes from ₹3520 to ₹4928. By what percent did it go up?
15. 15.A price comes down by 50% and then comes down by 25% more. By what percent has it come down in all? =
16. 16.A water tank holds 2360 litres. 50% of the water is used. How many litres are left?
17. 17.A price goes up by 40% and then goes up by 20% more. By what percent has it gone up in all? =
18. 18.A price comes down by 10% and then comes down by 20% more. By what percent has it come down in all? =
19. 19.A price goes up by 40% and then comes down by 20%. By what percent has it gone up in all? =
20. 20.The price of a school bag changes from ₹4880 to ₹6344. By what percent did it go up?
21. 21.A shop sells 860 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
22. 22.A water tank holds 3700 litres. 40% of the water is used. How many litres are left?
23. 23.A price comes down by 10% and then comes down by 5% more. By what percent has it come down in all? =
24. 24.A price comes down by 30% and then comes down by 5% more. By what percent has it come down in all? =
25. 25.A water tank holds 1860 litres. 5% of the water is used. How many litres are left?
26. 26.The price of a school bag changes from ₹2480 to ₹2356. By what percent did it come down?
27. 27.A water tank holds 2660 litres. 30% of the water is used. How many litres are left?
28. 28.A water tank holds 3520 litres. 10% of the water is used. How many litres are left?
29. 29.A shop sells 2400 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
30. 30.A water tank holds 4320 litres. 15% of the water is used. How many litres are left?
31. 31.The price of a bicycle is ₹1520. It goes up by 50%. What is the new price (in ₹)?
32. 32.A shop sells 3160 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
33. 33.A price comes down by 25% and then comes down by 10% more. By what percent has it come down in all? =
34. 34.The price of a school bag changes from ₹4700 to ₹7050. By what percent did it go up?
35. 35.A town has 4620 people. Its population grows by 25%. How many people live there now?
36. 36.A price goes up by 40% and then goes up by 25% more. By what percent has it gone up in all? =
37. 37.A price goes up by 30% and then goes up by 30% more. By what percent has it gone up in all? =
38. 38.A water tank holds 280 litres. 20% of the water is used. How many litres are left?
39. 39.A town has 2860 people. Its population grows by 50%. How many people live there now?
40. 40.A price comes down by 30% and then comes down by 25% more. By what percent has it come down in all? =

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