Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 703 · 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 3820 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
2. 2.The price of a bicycle is ₹360. It goes up by 30%. What is the new price (in ₹)?
3. 3.A shop sells 1280 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
4. 4.A water tank holds 420 litres. 5% of the water is used. How many litres are left?
5. 5.A water tank holds 3700 litres. 15% of the water is used. How many litres are left?
6. 6.The price of a school bag changes from ₹3240 to ₹2430. By what percent did it come down?
7. 7.A town has 100 people. Its population grows by 25%. How many people live there now?
8. 8.The price of a bicycle is ₹1940. It goes up by 50%. What is the new price (in ₹)?
9. 9.A price comes down by 50% and then comes down by 15% more. By what percent has it come down in all? =
10. 10.A price goes up by 50% and then goes up by 25% more. By what percent has it gone up in all? =
11. 11.A water tank holds 4560 litres. 5% of the water is used. How many litres are left?
12. 12.A shop sells 3480 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
13. 13.A water tank holds 1080 litres. 15% of the water is used. How many litres are left?
14. 14.The price of a school bag changes from ₹2120 to ₹2650. By what percent did it go up?
15. 15.A price goes up by 20% and then comes down by 5%. By what percent has it gone up in all? =
16. 16.A price goes up by 50% and then goes up by 10% more. By what percent has it gone up in all? =
17. 17.A price goes up by 5% and then goes up by 30% more. By what percent has it gone up in all? =
18. 18.A water tank holds 4080 litres. 10% of the water is used. How many litres are left?
19. 19.A shop sells 3700 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
20. 20.A water tank holds 460 litres. 30% of the water is used. How many litres are left?
21. 21.The price of a school bag changes from ₹960 to ₹1440. By what percent did it go up?
22. 22.A price comes down by 40% and then comes down by 25% more. By what percent has it come down in all? =
23. 23.A price goes up by 40% and then goes up by 20% more. By what percent has it gone up in all? =
24. 24.A town has 1140 people. Its population grows by 40%. How many people live there now?
25. 25.A town has 4220 people. Its population grows by 30%. How many people live there now?
26. 26.A shop sells 2700 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
27. 27.The price of a bicycle is ₹4400. It goes up by 30%. What is the new price (in ₹)?
28. 28.A price comes down by 5% and then comes down by 50% more. By what percent has it come down in all? =
29. 29.The price of a bicycle is ₹4400. It goes up by 5%. What is the new price (in ₹)?
30. 30.A water tank holds 3040 litres. 40% of the water is used. How many litres are left?
31. 31.A shop sells 2500 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
32. 32.The price of a bicycle is ₹1280. It goes up by 5%. What is the new price (in ₹)?
33. 33.A shop sells 2580 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
34. 34.A town has 1500 people. Its population grows by 20%. How many people live there now?
35. 35.The price of a school bag changes from ₹100 to ₹80. By what percent did it come down?
36. 36.The price of a school bag changes from ₹120 to ₹114. By what percent did it come down?
37. 37.A water tank holds 2300 litres. 40% of the water is used. How many litres are left?
38. 38.A shop sells 3160 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
39. 39.A price goes up by 5% and then goes up by 40% more. By what percent has it gone up in all? =
40. 40.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =

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