Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 401 · 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.The price of a school bag changes from ₹1320 to ₹1650. By what percent did it go up?
2. 2.A price goes up by 5% and then goes up by 15% more. By what percent has it gone up in all? =
3. 3.The price of a school bag changes from ₹860 to ₹946. By what percent did it go up?
4. 4.A price comes down by 10% and then comes down by 50% more. By what percent has it come down in all? =
5. 5.The price of a school bag changes from ₹1060 to ₹1484. By what percent did it go up?
6. 6.The price of a school bag changes from ₹3320 to ₹1660. By what percent did it come down?
7. 7.A price comes down by 40% and then comes down by 10% more. By what percent has it come down in all? =
8. 8.A water tank holds 3660 litres. 40% of the water is used. How many litres are left?
9. 9.A shop sells 3200 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
10. 10.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
11. 11.The price of a school bag changes from ₹2460 to ₹3444. By what percent did it go up?
12. 12.A shop sells 1280 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
13. 13.The price of a school bag changes from ₹4120 to ₹3502. By what percent did it come down?
14. 14.A water tank holds 1180 litres. 20% of the water is used. How many litres are left?
15. 15.A price comes down by 5% and then comes down by 20% more. By what percent has it come down in all? =
16. 16.The price of a bicycle is ₹3400. It goes up by 15%. What is the new price (in ₹)?
17. 17.The price of a bicycle is ₹2580. It goes up by 20%. What is the new price (in ₹)?
18. 18.A water tank holds 4160 litres. 40% of the water is used. How many litres are left?
19. 19.The price of a bicycle is ₹4680. It goes up by 30%. What is the new price (in ₹)?
20. 20.The price of a bicycle is ₹1740. It goes up by 40%. What is the new price (in ₹)?
21. 21.A water tank holds 4420 litres. 5% of the water is used. How many litres are left?
22. 22.A water tank holds 1540 litres. 30% of the water is used. How many litres are left?
23. 23.A water tank holds 3940 litres. 5% of the water is used. How many litres are left?
24. 24.A price goes up by 40% and then comes down by 25%. By what percent has it gone up in all? =
25. 25.A town has 3020 people. Its population grows by 40%. How many people live there now?
26. 26.The price of a school bag changes from ₹440 to ₹330. By what percent did it come down?
27. 27.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
28. 28.A price goes up by 30% and then comes down by 5%. By what percent has it gone up in all? =
29. 29.A shop sells 3360 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
30. 30.A shop sells 1040 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
31. 31.A water tank holds 2260 litres. 50% of the water is used. How many litres are left?
32. 32.A water tank holds 1260 litres. 5% of the water is used. How many litres are left?
33. 33.The price of a bicycle is ₹2920. It goes up by 5%. What is the new price (in ₹)?
34. 34.A water tank holds 1340 litres. 20% of the water is used. How many litres are left?
35. 35.The price of a bicycle is ₹4740. It goes up by 5%. What is the new price (in ₹)?
36. 36.A price goes up by 40% and then goes up by 20% more. By what percent has it gone up in all? =
37. 37.A water tank holds 3420 litres. 5% of the water is used. How many litres are left?
38. 38.A water tank holds 2440 litres. 5% of the water is used. How many litres are left?
39. 39.A water tank holds 2940 litres. 10% of the water is used. How many litres are left?
40. 40.A water tank holds 4360 litres. 50% of the water is used. How many litres are left?

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