Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 672 · 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 water tank holds 3820 litres. 50% of the water is used. How many litres are left?
2. 2.The price of a bicycle is ₹1840. It goes up by 20%. What is the new price (in ₹)?
3. 3.The price of a bicycle is ₹2300. It goes up by 40%. What is the new price (in ₹)?
4. 4.A water tank holds 540 litres. 10% of the water is used. How many litres are left?
5. 5.A shop sells 2420 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
6. 6.A water tank holds 4800 litres. 20% of the water is used. How many litres are left?
7. 7.A water tank holds 1080 litres. 40% of the water is used. How many litres are left?
8. 8.A price comes down by 5% and then comes down by 25% more. By what percent has it come down in all? =
9. 9.A shop sells 980 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
10. 10.The price of a school bag changes from ₹2180 to ₹1090. By what percent did it come down?
11. 11.A water tank holds 4940 litres. 50% of the water is used. How many litres are left?
12. 12.A shop sells 1060 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
13. 13.A price comes down by 40% and then comes down by 40% more. By what percent has it come down in all? =
14. 14.The price of a school bag changes from ₹4300 to ₹3225. By what percent did it come down?
15. 15.A town has 4340 people. Its population grows by 20%. How many people live there now?
16. 16.A town has 3040 people. Its population grows by 10%. How many people live there now?
17. 17.The price of a school bag changes from ₹960 to ₹816. By what percent did it come down?
18. 18.The price of a school bag changes from ₹2580 to ₹2967. By what percent did it go up?
19. 19.A water tank holds 4360 litres. 20% of the water is used. How many litres are left?
20. 20.The price of a bicycle is ₹3760. It goes up by 25%. What is the new price (in ₹)?
21. 21.A water tank holds 920 litres. 40% of the water is used. How many litres are left?
22. 22.The price of a bicycle is ₹1820. It goes up by 5%. What is the new price (in ₹)?
23. 23.The price of a school bag changes from ₹2000 to ₹1600. By what percent did it come down?
24. 24.A water tank holds 4760 litres. 15% of the water is used. How many litres are left?
25. 25.A shop sells 1360 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
26. 26.The price of a bicycle is ₹820. It goes up by 15%. What is the new price (in ₹)?
27. 27.The price of a bicycle is ₹2680. It goes up by 30%. What is the new price (in ₹)?
28. 28.A price goes up by 25% and then comes down by 5%. By what percent has it gone up in all? =
29. 29.A shop sells 1280 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
30. 30.A shop sells 960 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
31. 31.The price of a school bag changes from ₹1720 to ₹2150. By what percent did it go up?
32. 32.A town has 1960 people. Its population grows by 10%. How many people live there now?
33. 33.A shop sells 1400 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
34. 34.A water tank holds 820 litres. 15% of the water is used. How many litres are left?
35. 35.A price goes up by 30% and then goes up by 5% more. By what percent has it gone up in all? =
36. 36.The price of a school bag changes from ₹80 to ₹88. By what percent did it go up?
37. 37.A water tank holds 3320 litres. 30% of the water is used. How many litres are left?
38. 38.A water tank holds 4660 litres. 40% of the water is used. How many litres are left?
39. 39.A water tank holds 1880 litres. 20% of the water is used. How many litres are left?
40. 40.A price goes up by 50% and then comes down by 30%. By what percent has it gone up in all? =

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