Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 958 · 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 10% and then comes down by 25% more. By what percent has it come down in all? =
2. 2.The price of a school bag changes from ₹2480 to ₹2108. By what percent did it come down?
3. 3.A water tank holds 2720 litres. 30% of the water is used. How many litres are left?
4. 4.The price of a bicycle is ₹140. It goes up by 30%. What is the new price (in ₹)?
5. 5.A shop sells 3760 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
6. 6.The price of a bicycle is ₹2680. It goes up by 25%. What is the new price (in ₹)?
7. 7.A water tank holds 940 litres. 40% of the water is used. How many litres are left?
8. 8.A shop sells 2000 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
9. 9.The price of a bicycle is ₹540. It goes up by 30%. What is the new price (in ₹)?
10. 10.The price of a bicycle is ₹2820. It goes up by 20%. What is the new price (in ₹)?
11. 11.The price of a bicycle is ₹3840. It goes up by 5%. What is the new price (in ₹)?
12. 12.The price of a bicycle is ₹1800. It goes up by 30%. What is the new price (in ₹)?
13. 13.A town has 1720 people. Its population grows by 25%. How many people live there now?
14. 14.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
15. 15.A water tank holds 920 litres. 40% of the water is used. How many litres are left?
16. 16.A shop sells 2320 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
17. 17.A shop sells 840 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
18. 18.A water tank holds 2400 litres. 10% of the water is used. How many litres are left?
19. 19.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
20. 20.The price of a school bag changes from ₹3000 to ₹1800. By what percent did it come down?
21. 21.A town has 900 people. Its population grows by 15%. How many people live there now?
22. 22.A water tank holds 2840 litres. 50% of the water is used. How many litres are left?
23. 23.A town has 380 people. Its population grows by 50%. How many people live there now?
24. 24.A shop sells 4600 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
25. 25.A water tank holds 2840 litres. 5% of the water is used. How many litres are left?
26. 26.A water tank holds 3320 litres. 40% of the water is used. How many litres are left?
27. 27.A water tank holds 1480 litres. 40% of the water is used. How many litres are left?
28. 28.A water tank holds 2080 litres. 30% of the water is used. How many litres are left?
29. 29.A water tank holds 4580 litres. 50% of the water is used. How many litres are left?
30. 30.The price of a school bag changes from ₹4380 to ₹5037. By what percent did it go up?
31. 31.A water tank holds 1580 litres. 50% of the water is used. How many litres are left?
32. 32.A water tank holds 620 litres. 20% of the water is used. How many litres are left?
33. 33.A water tank holds 4760 litres. 50% of the water is used. How many litres are left?
34. 34.A price goes up by 10% and then comes down by 5%. By what percent has it gone up in all? =
35. 35.The price of a bicycle is ₹4240. It goes up by 15%. What is the new price (in ₹)?
36. 36.A town has 4460 people. Its population grows by 40%. How many people live there now?
37. 37.The price of a school bag changes from ₹2600 to ₹1820. By what percent did it come down?
38. 38.A shop sells 4620 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
39. 39.The price of a school bag changes from ₹900 to ₹1080. By what percent did it go up?
40. 40.The price of a bicycle is ₹1400. It goes up by 5%. What is the new price (in ₹)?

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