Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 759 · 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 1480 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
2. 2.The price of a school bag changes from ₹4420 to ₹6188. By what percent did it go up?
3. 3.A water tank holds 1120 litres. 10% of the water is used. How many litres are left?
4. 4.The price of a school bag changes from ₹3180 to ₹3498. By what percent did it go up?
5. 5.A shop sells 360 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
6. 6.A water tank holds 3060 litres. 5% of the water is used. How many litres are left?
7. 7.A shop sells 1300 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
8. 8.A water tank holds 3960 litres. 10% of the water is used. How many litres are left?
9. 9.The price of a school bag changes from ₹1800 to ₹1080. By what percent did it come down?
10. 10.A water tank holds 4960 litres. 15% of the water is used. How many litres are left?
11. 11.The price of a bicycle is ₹3500. It goes up by 25%. What is the new price (in ₹)?
12. 12.A price goes up by 50% and then comes down by 5%. By what percent has it gone up in all? =
13. 13.A town has 4020 people. Its population grows by 10%. How many people live there now?
14. 14.A water tank holds 2920 litres. 15% of the water is used. How many litres are left?
15. 15.The price of a bicycle is ₹1020. It goes up by 15%. What is the new price (in ₹)?
16. 16.A price comes down by 30% and then comes down by 25% more. By what percent has it come down in all? =
17. 17.A price goes up by 5% and then goes up by 10% more. By what percent has it gone up in all? =
18. 18.A water tank holds 340 litres. 30% of the water is used. How many litres are left?
19. 19.A town has 3160 people. Its population grows by 25%. How many people live there now?
20. 20.A water tank holds 1080 litres. 30% of the water is used. How many litres are left?
21. 21.A shop sells 3660 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
22. 22.The price of a bicycle is ₹2260. It goes up by 15%. What is the new price (in ₹)?
23. 23.The price of a school bag changes from ₹2540 to ₹3175. By what percent did it go up?
24. 24.A town has 4440 people. Its population grows by 50%. How many people live there now?
25. 25.A price goes up by 40% and then comes down by 15%. By what percent has it gone up in all? =
26. 26.A water tank holds 460 litres. 5% of the water is used. How many litres are left?
27. 27.A price goes up by 50% and then goes up by 25% more. By what percent has it gone up in all? =
28. 28.The price of a school bag changes from ₹3280 to ₹4592. By what percent did it go up?
29. 29.The price of a school bag changes from ₹1200 to ₹1020. By what percent did it come down?
30. 30.A price comes down by 40% and then comes down by 20% more. By what percent has it come down in all? =
31. 31.A town has 3040 people. Its population grows by 5%. How many people live there now?
32. 32.A water tank holds 2700 litres. 15% of the water is used. How many litres are left?
33. 33.A price comes down by 20% and then comes down by 50% more. By what percent has it come down in all? =
34. 34.A shop sells 1240 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
35. 35.A shop sells 300 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
36. 36.A water tank holds 3560 litres. 10% of the water is used. How many litres are left?
37. 37.A water tank holds 2320 litres. 15% of the water is used. How many litres are left?
38. 38.A water tank holds 3140 litres. 5% of the water is used. How many litres are left?
39. 39.A town has 3420 people. Its population grows by 15%. How many people live there now?
40. 40.A price goes up by 10% and then goes up by 30% more. By what percent has it gone up in all? =

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