Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 826 · 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 20% and then goes up by 20% more. By what percent has it gone up in all? =
2. 2.The price of a school bag changes from ₹1660 to ₹1245. By what percent did it come down?
3. 3.A town has 3120 people. Its population grows by 20%. How many people live there now?
4. 4.The price of a school bag changes from ₹1900 to ₹2375. By what percent did it go up?
5. 5.The price of a school bag changes from ₹3740 to ₹4114. By what percent did it go up?
6. 6.The price of a bicycle is ₹220. It goes up by 10%. What is the new price (in ₹)?
7. 7.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
8. 8.The price of a school bag changes from ₹4960 to ₹5456. By what percent did it go up?
9. 9.The price of a bicycle is ₹1500. It goes up by 30%. What is the new price (in ₹)?
10. 10.A water tank holds 1780 litres. 10% of the water is used. How many litres are left?
11. 11.A town has 480 people. Its population grows by 20%. How many people live there now?
12. 12.The price of a school bag changes from ₹1020 to ₹1275. By what percent did it go up?
13. 13.A shop sells 1360 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
14. 14.A water tank holds 2980 litres. 10% of the water is used. How many litres are left?
15. 15.The price of a bicycle is ₹4440. It goes up by 5%. What is the new price (in ₹)?
16. 16.A water tank holds 3780 litres. 10% of the water is used. How many litres are left?
17. 17.A shop sells 2020 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
18. 18.A water tank holds 1580 litres. 30% of the water is used. How many litres are left?
19. 19.A town has 2360 people. Its population grows by 5%. How many people live there now?
20. 20.The price of a bicycle is ₹2400. It goes up by 40%. What is the new price (in ₹)?
21. 21.The price of a bicycle is ₹680. It goes up by 50%. What is the new price (in ₹)?
22. 22.A shop sells 4180 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
23. 23.A price goes up by 20% and then goes up by 5% more. By what percent has it gone up in all? =
24. 24.A water tank holds 3980 litres. 40% of the water is used. How many litres are left?
25. 25.A shop sells 3860 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
26. 26.A shop sells 1040 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
27. 27.The price of a school bag changes from ₹2780 to ₹3197. By what percent did it go up?
28. 28.A water tank holds 1860 litres. 30% of the water is used. How many litres are left?
29. 29.The price of a school bag changes from ₹940 to ₹893. By what percent did it come down?
30. 30.The price of a bicycle is ₹380. It goes up by 10%. What is the new price (in ₹)?
31. 31.A price comes down by 15% and then comes down by 30% more. By what percent has it come down in all? =
32. 32.A water tank holds 2400 litres. 10% of the water is used. How many litres are left?
33. 33.The price of a school bag changes from ₹1420 to ₹1278. By what percent did it come down?
34. 34.A water tank holds 4500 litres. 20% of the water is used. How many litres are left?
35. 35.The price of a school bag changes from ₹1260 to ₹1764. By what percent did it go up?
36. 36.The price of a bicycle is ₹2440. It goes up by 10%. What is the new price (in ₹)?
37. 37.A price goes up by 50% and then goes up by 10% more. By what percent has it gone up in all? =
38. 38.A water tank holds 400 litres. 25% of the water is used. How many litres are left?
39. 39.A price comes down by 50% and then comes down by 20% more. By what percent has it come down in all? =
40. 40.The price of a school bag changes from ₹2200 to ₹1980. By what percent did it come down?

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude