Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 876 · 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 2140 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 2160 litres. 5% of the water is used. How many litres are left?
3. 3.A shop sells 4840 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
4. 4.A price comes down by 20% and then comes down by 10% more. By what percent has it come down in all? =
5. 5.The price of a bicycle is ₹4800. It goes up by 40%. What is the new price (in ₹)?
6. 6.A price goes up by 40% and then goes up by 20% more. By what percent has it gone up in all? =
7. 7.The price of a bicycle is ₹1360. It goes up by 10%. What is the new price (in ₹)?
8. 8.A water tank holds 4720 litres. 40% of the water is used. How many litres are left?
9. 9.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
10. 10.The price of a bicycle is ₹1120. It goes up by 20%. What is the new price (in ₹)?
11. 11.A water tank holds 4180 litres. 20% of the water is used. How many litres are left?
12. 12.The price of a bicycle is ₹3240. It goes up by 50%. What is the new price (in ₹)?
13. 13.A shop sells 4540 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
14. 14.A water tank holds 2580 litres. 20% of the water is used. How many litres are left?
15. 15.A water tank holds 3500 litres. 25% of the water is used. How many litres are left?
16. 16.A price goes up by 40% and then goes up by 30% more. By what percent has it gone up in all? =
17. 17.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
18. 18.A water tank holds 4500 litres. 5% of the water is used. How many litres are left?
19. 19.The price of a bicycle is ₹3620. It goes up by 20%. What is the new price (in ₹)?
20. 20.A price comes down by 10% and then comes down by 30% more. By what percent has it come down in all? =
21. 21.A water tank holds 4720 litres. 25% of the water is used. How many litres are left?
22. 22.A water tank holds 3780 litres. 40% of the water is used. How many litres are left?
23. 23.A water tank holds 3300 litres. 20% of the water is used. How many litres are left?
24. 24.A water tank holds 540 litres. 5% of the water is used. How many litres are left?
25. 25.A price goes up by 30% and then goes up by 5% more. By what percent has it gone up in all? =
26. 26.A price comes down by 50% and then comes down by 30% more. By what percent has it come down in all? =
27. 27.The price of a bicycle is ₹4340. It goes up by 10%. What is the new price (in ₹)?
28. 28.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
29. 29.The price of a school bag changes from ₹3740 to ₹3553. By what percent did it come down?
30. 30.The price of a school bag changes from ₹1320 to ₹1386. By what percent did it go up?
31. 31.A shop sells 2860 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 140 litres. 40% of the water is used. How many litres are left?
33. 33.The price of a bicycle is ₹1380. It goes up by 25%. What is the new price (in ₹)?
34. 34.A price comes down by 25% and then comes down by 10% more. By what percent has it come down in all? =
35. 35.A price goes up by 30% and then comes down by 10%. By what percent has it gone up in all? =
36. 36.A price goes up by 25% and then goes up by 10% more. By what percent has it gone up in all? =
37. 37.A price comes down by 5% and then comes down by 30% more. By what percent has it come down in all? =
38. 38.A town has 4420 people. Its population grows by 30%. How many people live there now?
39. 39.A water tank holds 4420 litres. 40% 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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