Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 197 · 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 goes up by 5% and then goes up by 10% more. By what percent has it gone up in all? =
2. 2.The price of a bicycle is ₹4980. It goes up by 50%. What is the new price (in ₹)?
3. 3.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
4. 4.A shop sells 1500 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
5. 5.A town has 4020 people. Its population grows by 25%. How many people live there now?
6. 6.A water tank holds 1580 litres. 50% of the water is used. How many litres are left?
7. 7.A price comes down by 25% and then comes down by 15% more. By what percent has it come down in all? =
8. 8.A water tank holds 1320 litres. 25% of the water is used. How many litres are left?
9. 9.A town has 480 people. Its population grows by 40%. How many people live there now?
10. 10.A water tank holds 1640 litres. 10% of the water is used. How many litres are left?
11. 11.A water tank holds 820 litres. 15% of the water is used. How many litres are left?
12. 12.The price of a school bag changes from ₹3300 to ₹3630. By what percent did it go up?
13. 13.A shop sells 3760 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
14. 14.A price goes up by 25% and then goes up by 15% more. By what percent has it gone up in all? =
15. 15.The price of a school bag changes from ₹2540 to ₹3175. By what percent did it go up?
16. 16.A water tank holds 2620 litres. 5% of the water is used. How many litres are left?
17. 17.A town has 2300 people. Its population grows by 50%. How many people live there now?
18. 18.The price of a school bag changes from ₹2060 to ₹2369. By what percent did it go up?
19. 19.A water tank holds 1040 litres. 5% of the water is used. How many litres are left?
20. 20.A shop sells 680 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
21. 21.A price comes down by 10% and then comes down by 25% more. By what percent has it come down in all? =
22. 22.The price of a school bag changes from ₹1820 to ₹1729. By what percent did it come down?
23. 23.A water tank holds 4640 litres. 15% of the water is used. How many litres are left?
24. 24.A price goes up by 15% and then goes up by 20% more. By what percent has it gone up in all? =
25. 25.The price of a school bag changes from ₹3800 to ₹4180. By what percent did it go up?
26. 26.The price of a bicycle is ₹2700. It goes up by 5%. What is the new price (in ₹)?
27. 27.A water tank holds 4800 litres. 25% of the water is used. How many litres are left?
28. 28.A shop sells 1540 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
29. 29.A water tank holds 3200 litres. 20% of the water is used. How many litres are left?
30. 30.A shop sells 1520 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
31. 31.The price of a school bag changes from ₹1440 to ₹2160. By what percent did it go up?
32. 32.A price goes up by 40% and then comes down by 10%. By what percent has it gone up in all? =
33. 33.The price of a bicycle is ₹1320. It goes up by 40%. What is the new price (in ₹)?
34. 34.The price of a school bag changes from ₹2080 to ₹1768. By what percent did it come down?
35. 35.A shop sells 4640 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
36. 36.A water tank holds 1100 litres. 15% of the water is used. How many litres are left?
37. 37.A shop sells 2960 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
38. 38.A shop sells 3840 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
39. 39.A water tank holds 1500 litres. 50% of the water is used. How many litres are left?
40. 40.A water tank holds 3040 litres. 25% of the water is used. How many litres are left?

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