Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 360 · 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.A price goes up by 20% and then goes up by 20% more. By what percent has it gone up in all? =
2. 2.The price of a school bag changes from ₹480 to ₹384. By what percent did it come down?
3. 3.A price goes up by 50% and then goes up by 5% more. By what percent has it gone up in all? =
4. 4.A water tank holds 980 litres. 5% of the water is used. How many litres are left?
5. 5.A shop sells 3280 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
6. 6.A price goes up by 25% and then goes up by 50% more. By what percent has it gone up in all? =
7. 7.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
8. 8.The price of a bicycle is ₹480. It goes up by 50%. What is the new price (in ₹)?
9. 9.The price of a school bag changes from ₹1580 to ₹2212. By what percent did it go up?
10. 10.A water tank holds 3960 litres. 5% of the water is used. How many litres are left?
11. 11.A water tank holds 4080 litres. 15% of the water is used. How many litres are left?
12. 12.A town has 3160 people. Its population grows by 5%. How many people live there now?
13. 13.The price of a school bag changes from ₹700 to ₹910. By what percent did it go up?
14. 14.The price of a bicycle is ₹1760. It goes up by 50%. What is the new price (in ₹)?
15. 15.The price of a school bag changes from ₹460 to ₹552. By what percent did it go up?
16. 16.A price goes up by 10% and then goes up by 15% more. By what percent has it gone up in all? =
17. 17.A water tank holds 4020 litres. 20% of the water is used. How many litres are left?
18. 18.A price comes down by 5% and then comes down by 30% more. By what percent has it come down in all? =
19. 19.A price goes up by 15% and then goes up by 50% more. By what percent has it gone up in all? =
20. 20.The price of a bicycle is ₹1260. It goes up by 10%. What is the new price (in ₹)?
21. 21.The price of a school bag changes from ₹3860 to ₹1930. By what percent did it come down?
22. 22.A price comes down by 5% and then comes down by 20% more. By what percent has it come down in all? =
23. 23.The price of a school bag changes from ₹1460 to ₹1095. By what percent did it come down?
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 shop sells 2000 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
26. 26.A price comes down by 30% and then comes down by 20% more. By what percent has it come down in all? =
27. 27.A town has 280 people. Its population grows by 20%. How many people live there now?
28. 28.The price of a bicycle is ₹460. It goes up by 50%. What is the new price (in ₹)?
29. 29.A water tank holds 600 litres. 15% of the water is used. How many litres are left?
30. 30.A price comes down by 5% and then comes down by 5% more. By what percent has it come down in all? =
31. 31.The price of a school bag changes from ₹4520 to ₹5650. By what percent did it go up?
32. 32.A shop sells 3020 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
33. 33.A town has 4800 people. Its population grows by 5%. How many people live there now?
34. 34.A price goes up by 25% and then goes up by 10% more. By what percent has it gone up in all? =
35. 35.The price of a bicycle is ₹220. It goes up by 40%. What is the new price (in ₹)?
36. 36.The price of a school bag changes from ₹3900 to ₹2925. By what percent did it come down?
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.A water tank holds 2940 litres. 20% of the water is used. How many litres are left?
39. 39.The price of a school bag changes from ₹1960 to ₹2058. By what percent did it go up?
40. 40.A water tank holds 200 litres. 10% of the water is used. How many litres are left?

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