Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 874 · 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 school bag changes from ₹3740 to ₹4114. By what percent did it go up?
2. 2.The price of a school bag changes from ₹680 to ₹646. By what percent did it come down?
3. 3.The price of a school bag changes from ₹1080 to ₹810. By what percent did it come down?
4. 4.The price of a school bag changes from ₹2780 to ₹3892. By what percent did it go up?
5. 5.A water tank holds 320 litres. 30% of the water is used. How many litres are left?
6. 6.A water tank holds 3440 litres. 5% of the water is used. How many litres are left?
7. 7.A price goes up by 20% and then goes up by 15% more. By what percent has it gone up in all? =
8. 8.A water tank holds 2340 litres. 5% of the water is used. How many litres are left?
9. 9.A water tank holds 3260 litres. 25% of the water is used. How many litres are left?
10. 10.A shop sells 2500 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
11. 11.A shop sells 4060 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
12. 12.A town has 1520 people. Its population grows by 50%. How many people live there now?
13. 13.A price comes down by 30% and then comes down by 50% more. By what percent has it come down in all? =
14. 14.A shop sells 2300 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
15. 15.The price of a bicycle is ₹1860. It goes up by 15%. What is the new price (in ₹)?
16. 16.A shop sells 1520 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
17. 17.The price of a bicycle is ₹340. It goes up by 5%. What is the new price (in ₹)?
18. 18.A town has 1860 people. Its population grows by 25%. How many people live there now?
19. 19.The price of a school bag changes from ₹2820 to ₹2538. By what percent did it come down?
20. 20.The price of a bicycle is ₹580. It goes up by 10%. What is the new price (in ₹)?
21. 21.A water tank holds 1260 litres. 25% of the water is used. How many litres are left?
22. 22.The price of a school bag changes from ₹1040 to ₹884. By what percent did it come down?
23. 23.A shop sells 2480 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
24. 24.A water tank holds 4540 litres. 30% of the water is used. How many litres are left?
25. 25.The price of a school bag changes from ₹160 to ₹208. By what percent did it go up?
26. 26.A water tank holds 3220 litres. 10% of the water is used. How many litres are left?
27. 27.The price of a bicycle is ₹400. It goes up by 50%. What is the new price (in ₹)?
28. 28.A water tank holds 1740 litres. 15% of the water is used. How many litres are left?
29. 29.The price of a school bag changes from ₹260 to ₹338. By what percent did it go up?
30. 30.A shop sells 1980 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
31. 31.The price of a school bag changes from ₹1480 to ₹1850. By what percent did it go up?
32. 32.A price comes down by 20% and then comes down by 5% more. By what percent has it come down in all? =
33. 33.A water tank holds 1820 litres. 20% of the water is used. How many litres are left?
34. 34.A water tank holds 2840 litres. 40% of the water is used. How many litres are left?
35. 35.A price goes up by 5% and then goes up by 15% more. By what percent has it gone up in all? =
36. 36.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
37. 37.A price comes down by 5% and then comes down by 20% more. By what percent has it come down in all? =
38. 38.A town has 820 people. Its population grows by 20%. How many people live there now?
39. 39.A water tank holds 4820 litres. 20% of the water is used. How many litres are left?
40. 40.A price goes up by 10% and then comes down by 5%. By what percent has it gone up in all? =

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