Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 377 · 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 ₹3780 to ₹4347. By what percent did it go up?
2. 2.The price of a bicycle is ₹4400. It goes up by 30%. What is the new price (in ₹)?
3. 3.A shop sells 4800 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
4. 4.A price comes down by 40% and then comes down by 30% more. By what percent has it come down in all? =
5. 5.The price of a school bag changes from ₹3800 to ₹4180. By what percent did it go up?
6. 6.A water tank holds 3600 litres. 30% of the water is used. How many litres are left?
7. 7.A water tank holds 4860 litres. 15% of the water is used. How many litres are left?
8. 8.A shop sells 4320 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
9. 9.The price of a school bag changes from ₹1760 to ₹880. By what percent did it come down?
10. 10.A price goes up by 50% and then goes up by 20% more. By what percent has it gone up in all? =
11. 11.A water tank holds 360 litres. 5% of the water is used. How many litres are left?
12. 12.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
13. 13.The price of a school bag changes from ₹2200 to ₹2530. By what percent did it go up?
14. 14.A water tank holds 3140 litres. 20% of the water is used. How many litres are left?
15. 15.A water tank holds 2480 litres. 25% of the water is used. How many litres are left?
16. 16.A water tank holds 3700 litres. 50% of the water is used. How many litres are left?
17. 17.A price goes up by 10% and then goes up by 40% more. By what percent has it gone up in all? =
18. 18.The price of a school bag changes from ₹280 to ₹266. By what percent did it come down?
19. 19.A water tank holds 4640 litres. 10% of the water is used. How many litres are left?
20. 20.A water tank holds 920 litres. 40% of the water is used. How many litres are left?
21. 21.The price of a school bag changes from ₹2900 to ₹3480. By what percent did it go up?
22. 22.The price of a school bag changes from ₹980 to ₹931. By what percent did it come down?
23. 23.A shop sells 2020 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
24. 24.A water tank holds 2840 litres. 40% of the water is used. How many litres are left?
25. 25.A shop sells 4040 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
26. 26.The price of a bicycle is ₹880. It goes up by 40%. What is the new price (in ₹)?
27. 27.A water tank holds 1840 litres. 30% of the water is used. How many litres are left?
28. 28.A shop sells 1700 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
29. 29.A water tank holds 3640 litres. 10% of the water is used. How many litres are left?
30. 30.A water tank holds 1520 litres. 5% of the water is used. How many litres are left?
31. 31.A shop sells 4620 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
32. 32.A water tank holds 3760 litres. 20% of the water is used. How many litres are left?
33. 33.The price of a school bag changes from ₹4220 to ₹2954. By what percent did it come down?
34. 34.A shop sells 360 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
35. 35.A water tank holds 1660 litres. 5% of the water is used. How many litres are left?
36. 36.A water tank holds 1040 litres. 5% of the water is used. How many litres are left?
37. 37.The price of a school bag changes from ₹2820 to ₹2256. By what percent did it come down?
38. 38.A water tank holds 4320 litres. 50% of the water is used. How many litres are left?
39. 39.The price of a bicycle is ₹480. It goes up by 30%. What is the new price (in ₹)?
40. 40.A town has 240 people. Its population grows by 10%. How many people live there now?

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