Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 335 · 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 3260 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 bicycle is ₹4860. It goes up by 30%. What is the new price (in ₹)?
3. 3.A town has 4660 people. Its population grows by 40%. How many people live there now?
4. 4.A town has 3300 people. Its population grows by 15%. How many people live there now?
5. 5.A water tank holds 1940 litres. 10% of the water is used. How many litres are left?
6. 6.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
7. 7.A price goes up by 50% and then comes down by 20%. By what percent has it gone up in all? =
8. 8.The price of a bicycle is ₹1000. It goes up by 15%. What is the new price (in ₹)?
9. 9.A price comes down by 5% and then comes down by 20% more. By what percent has it come down in all? =
10. 10.A water tank holds 400 litres. 40% of the water is used. How many litres are left?
11. 11.A shop sells 140 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
12. 12.A water tank holds 4020 litres. 25% of the water is used. How many litres are left?
13. 13.The price of a bicycle is ₹160. It goes up by 40%. What is the new price (in ₹)?
14. 14.A price goes up by 20% and then goes up by 25% more. By what percent has it gone up in all? =
15. 15.The price of a school bag changes from ₹1360 to ₹1292. By what percent did it come down?
16. 16.A water tank holds 1000 litres. 25% of the water is used. How many litres are left?
17. 17.A shop sells 1260 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
18. 18.A water tank holds 1260 litres. 40% of the water is used. How many litres are left?
19. 19.A water tank holds 1180 litres. 10% of the water is used. How many litres are left?
20. 20.A water tank holds 2960 litres. 40% of the water is used. How many litres are left?
21. 21.A water tank holds 1740 litres. 50% of the water is used. How many litres are left?
22. 22.The price of a bicycle is ₹4300. It goes up by 5%. What is the new price (in ₹)?
23. 23.A shop sells 4220 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
24. 24.A price goes up by 15% and then goes up by 5% more. By what percent has it gone up in all? =
25. 25.A town has 4920 people. Its population grows by 30%. How many people live there now?
26. 26.A water tank holds 1860 litres. 25% of the water is used. How many litres are left?
27. 27.A town has 1400 people. Its population grows by 25%. How many people live there now?
28. 28.A water tank holds 2660 litres. 50% of the water is used. How many litres are left?
29. 29.A water tank holds 5000 litres. 15% of the water is used. How many litres are left?
30. 30.The price of a school bag changes from ₹700 to ₹770. By what percent did it go up?
31. 31.A water tank holds 3140 litres. 15% of the water is used. How many litres are left?
32. 32.A town has 380 people. Its population grows by 10%. How many people live there now?
33. 33.A price goes up by 50% and then goes up by 15% more. By what percent has it gone up in all? =
34. 34.A water tank holds 1260 litres. 5% of the water is used. How many litres are left?
35. 35.The price of a bicycle is ₹1720. It goes up by 40%. What is the new price (in ₹)?
36. 36.A water tank holds 3700 litres. 30% of the water is used. How many litres are left?
37. 37.A price goes up by 50% and then goes up by 5% more. By what percent has it gone up in all? =
38. 38.The price of a bicycle is ₹2860. It goes up by 30%. What is the new price (in ₹)?
39. 39.A shop sells 1340 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
40. 40.A price goes up by 25% and then comes down by 5%. By what percent has it gone up in all? =

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