Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 716 · 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 price comes down by 25% and then comes down by 20% more. By what percent has it come down in all? =
2. 2.The price of a school bag changes from ₹1880 to ₹2256. By what percent did it go up?
3. 3.The price of a bicycle is ₹1420. It goes up by 30%. What is the new price (in ₹)?
4. 4.A water tank holds 860 litres. 15% of the water is used. How many litres are left?
5. 5.The price of a bicycle is ₹1080. It goes up by 25%. What is the new price (in ₹)?
6. 6.The price of a bicycle is ₹4240. It goes up by 15%. What is the new price (in ₹)?
7. 7.A water tank holds 1160 litres. 5% of the water is used. How many litres are left?
8. 8.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
9. 9.A town has 920 people. Its population grows by 5%. How many people live there now?
10. 10.The price of a school bag changes from ₹500 to ₹575. By what percent did it go up?
11. 11.A town has 940 people. Its population grows by 5%. How many people live there now?
12. 12.A price comes down by 20% and then comes down by 25% more. By what percent has it come down in all? =
13. 13.A price goes up by 30% and then comes down by 20%. By what percent has it gone up in all? =
14. 14.A water tank holds 3580 litres. 5% of the water is used. How many litres are left?
15. 15.The price of a bicycle is ₹280. It goes up by 20%. What is the new price (in ₹)?
16. 16.A town has 3520 people. Its population grows by 25%. How many people live there now?
17. 17.A shop sells 1680 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
18. 18.The price of a bicycle is ₹1460. It goes up by 40%. What is the new price (in ₹)?
19. 19.A town has 2540 people. Its population grows by 20%. How many people live there now?
20. 20.A shop sells 4240 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
21. 21.A shop sells 1180 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
22. 22.A town has 3000 people. Its population grows by 20%. How many people live there now?
23. 23.A water tank holds 440 litres. 50% of the water is used. How many litres are left?
24. 24.A water tank holds 2580 litres. 20% of the water is used. How many litres are left?
25. 25.A price goes up by 50% and then comes down by 30%. By what percent has it gone up in all? =
26. 26.A shop sells 2560 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
27. 27.The price of a bicycle is ₹160. It goes up by 5%. What is the new price (in ₹)?
28. 28.A shop sells 4600 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
29. 29.A shop sells 980 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
30. 30.A water tank holds 300 litres. 50% of the water is used. How many litres are left?
31. 31.A water tank holds 4580 litres. 5% of the water is used. How many litres are left?
32. 32.A price comes down by 5% and then comes down by 50% more. By what percent has it come down in all? =
33. 33.A town has 3140 people. Its population grows by 25%. How many people live there now?
34. 34.A price goes up by 30% and then comes down by 5%. By what percent has it gone up in all? =
35. 35.The price of a bicycle is ₹1640. It goes up by 10%. What is the new price (in ₹)?
36. 36.A water tank holds 2220 litres. 25% of the water is used. How many litres are left?
37. 37.A shop sells 4780 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
38. 38.A price comes down by 20% and then comes down by 30% more. By what percent has it come down in all? =
39. 39.The price of a school bag changes from ₹840 to ₹630. By what percent did it come down?
40. 40.The price of a bicycle is ₹160. It goes up by 30%. What is the new price (in ₹)?

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