Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 318 · 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 shop sells 4560 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
2. 2.A water tank holds 4680 litres. 10% of the water is used. How many litres are left?
3. 3.A town has 2600 people. Its population grows by 25%. How many people live there now?
4. 4.A water tank holds 3520 litres. 15% of the water is used. How many litres are left?
5. 5.A water tank holds 3500 litres. 10% of the water is used. How many litres are left?
6. 6.A shop sells 3640 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
7. 7.A town has 2900 people. Its population grows by 20%. How many people live there now?
8. 8.The price of a bicycle is ₹1040. It goes up by 15%. What is the new price (in ₹)?
9. 9.A water tank holds 1500 litres. 40% of the water is used. How many litres are left?
10. 10.The price of a school bag changes from ₹4800 to ₹4080. By what percent did it come down?
11. 11.The price of a school bag changes from ₹3100 to ₹2170. By what percent did it come down?
12. 12.The price of a school bag changes from ₹2820 to ₹3666. By what percent did it go up?
13. 13.A town has 2260 people. Its population grows by 10%. How many people live there now?
14. 14.A price comes down by 20% and then comes down by 25% more. By what percent has it come down in all? =
15. 15.A shop sells 940 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
16. 16.The price of a school bag changes from ₹700 to ₹770. By what percent did it go up?
17. 17.The price of a school bag changes from ₹3300 to ₹2805. By what percent did it come down?
18. 18.The price of a school bag changes from ₹2840 to ₹2556. By what percent did it come down?
19. 19.A water tank holds 700 litres. 15% of the water is used. How many litres are left?
20. 20.The price of a bicycle is ₹980. It goes up by 5%. What is the new price (in ₹)?
21. 21.A water tank holds 920 litres. 25% of the water is used. How many litres are left?
22. 22.A shop sells 4960 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
23. 23.A water tank holds 3220 litres. 10% of the water is used. How many litres are left?
24. 24.A shop sells 4320 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
25. 25.A town has 4800 people. Its population grows by 5%. How many people live there now?
26. 26.A water tank holds 2500 litres. 5% of the water is used. How many litres are left?
27. 27.A water tank holds 3720 litres. 40% of the water is used. How many litres are left?
28. 28.The price of a bicycle is ₹2960. It goes up by 40%. What is the new price (in ₹)?
29. 29.The price of a school bag changes from ₹4700 to ₹6110. By what percent did it go up?
30. 30.A shop sells 2760 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
31. 31.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
32. 32.A shop sells 3020 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
33. 33.The price of a school bag changes from ₹4780 to ₹5975. By what percent did it go up?
34. 34.A water tank holds 3460 litres. 5% of the water is used. How many litres are left?
35. 35.A town has 220 people. Its population grows by 10%. How many people live there now?
36. 36.The price of a bicycle is ₹2760. It goes up by 10%. What is the new price (in ₹)?
37. 37.A water tank holds 2260 litres. 5% of the water is used. How many litres are left?
38. 38.A town has 460 people. Its population grows by 50%. How many people live there now?
39. 39.The price of a school bag changes from ₹80 to ₹72. By what percent did it come down?
40. 40.The price of a bicycle is ₹640. It goes up by 20%. What is the new price (in ₹)?

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